Sunny earns $
12
$12dollar sign, 12 per hour delivering cakes. She worked for
x
xx hours this week. Unfortunately, she was charged
$
15
$15dollar sign, 15 for a late delivery on Tuesday.
How much money did Sunny earn this week?

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