Use your equation to determine how long grace was at birth. show your work and explain how you can check your result using your knowledge of rate of change.

equation- y=0.75x+17
rate of change- 0.75

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Solve this problem! extra ! 3025/5.5 = a/90.75