The cost of dinner for 5 friends was $75, plus a $15 tip. If the cost of the meal and tip was split eqaully among the friends, how much did each of them pay?
$15
$90
$18
$12

Find the missing part. use an improper fraction for your answer.

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

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