The size of a school increased so that it had 750 pupils instead of 680 and 38 teachers instead of 37. Find the percentage increases in the number of teachers
and pupils. Comment on your answers.

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work