A boy in kindergarten measured 3 1/2. feet tall. Over the next 9 1/2 years, he grew to a height of 5 3/4 feet. During the 9 1/2 years, what was the boy's average yearly growth rate?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need