Find the sixth entity in the given pattern: 1,3,7,15,31,__

Ken earned x dollars at his part-time job on Friday. His wife earned $\$12$more than twice Ken’s pay (2x + 12). Together, they earned $ \$174$. How much did Ken earn on Friday?

Two rectangles are in proportion. The bigger rectangle has a base of 8 inches and height of 3 inches. If the smaller rectangle has a base of 5 inches, what is its height?

228 people have registered for a sightseeing tour of the Grand Canyon. If a tour director can take 35 people on each tour, how many tour directors will be needed to accommodate everyone?

If $x^{2}+ 4x = 0$, how many values of $x$ are possible?

Which of the following is the greatest?

A rectangular box with a square base has the dimension of any side of square to be 8meters. The height of the box is 2 meters. The Volume of the box will be?

Referring to the figure, you can find m ∠AFB if you know which of the following angle measures?

The value of a new computer decreases 20% each year. Ryan originally purchased his computer for $\$1500$ .
What is the value of Ryan’s computer at the end of the second year he owns it?

$3x+n = 19$
$-2x-n = -14$
If the equations above are true, what is the value of x?

The sum of 3 numbers is 98. If the ratio between the first and second is 2:3 and between second and third be 5:8, then the second number would be?

Which area is bigger: a circle with a diameter of 10 feet or a triangle with an area of 100 sq ft?

If a sphere and a circle both have the same diameter, then whose surface area would be larger?

If a/b *b/c*c/d*x= 1 , then which of the following represents the value of x ?

Determine if the following function is even or odd.$f(x)=\frac{5 x}{2 x^{2}-1}$

Which formula describes a room at 72 degrees beginning to cool at 3 degrees per hour?

If AC is perpendicular to CB and m∠CBD = 125°, then m∠A equals

Last month, the balance in Tisha's checkbook was $\$1219.17$. Since then she has deposited her latest paycheck of $\$2425.66$ and written checks for $\$850.00$ (rent), $\$235.89 $(car payment), and $ \$418.37 $(credit card payment).
What is the current balance in Tisha's checking account?

Evaluate $y^{2}(4 x-y)$ if y = −2 and x = 8.

Mrs. Greaves' digital watch has a display for seconds, as well as for hours and minutes. What is the probability that the display for seconds will show 35 when Mrs. Greaves suddenly decides to check the time?

When Felicia checked out at the grocery store, she gave the clerk $\$20.00$ and received $\$3.80 $as the correct amount of change. Which of the following could Felicia have bought?

If x < –1, which of the following is greatest in value?

In an arithmetic sequence, each successive term is either greater than or less than the preceding term by the same amount. What is the tenth term of the arithmetic sequence 30, 27, 24, . . . ?

The diagonals of a rhombus are ______ to each other?

The gauge on a water tank shows that the tank is 1/3 full of water. In order to ﬁll the tank, 16 gallons of water are added. How many gallons of water does the tank hold when full?

Find the sixth entity in the given pattern:1,3,7,15,31,___,

Find the sixth entity in the given pattern:
1,3,7,15,31,___,