For a right triangle, one angle is 20 degrees. What are the other two angles?

How many bricks each of size \(25 \mathrm{~cm} \times 13.5 \mathrm{~cm} \times 6 \mathrm{~cm}\), will be required to build a wall 8 m long, 5.4 m high and 33 cm thick?

If a = 3, b = –3, and \( c = \frac{1}{3}\), then what is the value of \(a b^{2} c^{2}\) ?

If \(|x+2| \leq 3\), for what values of x, this inequality holds?

The area of any one triangle (out of four) is \(5m^{2}\). What will be the area of the square?

An airline weighed the carry-on luggage of all its 1,106 passengers in a single day. The results are shown in the graph. How many of these passengers had carry-on luggage that weighed less than 20 lb?

Kate bought three laptops. A dell laptop cost \(\$350\), Apple cost \(\$450\) and Samsung cost \(\$ 620\). What is the average cost per laptop?

The price of a car was \(\$40,000 \) in 2011, \(\$35,000 \) in 2012 and \(\$30,000\) in 2013. What is the rate of depreciation of the price of car?