V=12.5 +2.5t. V= volume of water (in litres) , t is time in mins. After the first three mins of filling the bucket with water it is half full. What's the capacity when bucket is filled to the brim?

(hurry! ) which expression is equivalent to the following complex fraction?

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.