You bought a game system tor 120 and sold
it for $150. What is the percent increase?

Solve the system by the elimination method. 2x + y - 4 = 0 2x - y - 4 = 0 when you eliminate y, what is the resulting equation? a. x = 0 b.4x = -8 c.4x = 8

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.