Which equation can be used to solve for X in the following diagram choose one answer A: 13x - 5x = 180 B: 5x + 13x = 90 C: 5x + 13x = 180 D: 5x = 13x

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Which graph depicts the path of a projectile