The formula for body mass index is BMI = w/h^2 x 703, where w is a person’s weight (in pounds) and h is a person’s height (in inches). Find the weight of a 13-year-old boy that is 60 inches tall and has a BMI of 20.5.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)