Blue and white tiles are used to decorate a wall. The ratio of blue to white tiles is 7:2. There were 180 tiles used in all. How many blue tiles were used?

Express 250 ml as a percentage of 2 litres.

Simplify 154/22 * 121/4

What is the distance (in units) between 4 and - 9 on a number line?

Two men start from 2 places 600km apart and travel towards each other, the first travelling 5km/h faster than the other. they meet after 8 hours.

You have a drawer with five pairs of white socks, three pairs of black socks, and one pair of red socks. You choose one pair of socks at random each morning, starting on Monday. You do not put the socks you choose back in the drawer.

A parachutist's rate during a free fall reaches 165 feet per second. What is this rate in meters per second? At this rate, how many meters will the parachutist fall during 5 seconds of free fall?

Use the net to determine the total surface area. The net of a prism with width 10 inches, length 5 inches, and height 7 inches is laid flat. 330 in2 270 in2 310 in2 350 in2

What is an equilateral triangle

In triangle PQR, p equals what. 1) (r sin P) / sin Q 2) (r sin P) / sin R 3) (r sin R) / sin P 4) (q sin R) / sin Q

The area of a rectangle is x - 16. If the width of rectangle is * + 1, find an expression to represent the length.