A pool can be filled bye one pipe in 10 hours and by a second pipe in 15 hours. How long will it take using both pipes to fill the pool?

in one week a kiln removes 1/3 of the moisture from a stack of wood. What fraction of the moisture remains in the lumber after 5 weeks in a kiln?

The sides of the parallelogram are 63cm and 76cm. if they intersect at an angle of 63 degrees, find the area of the parallelogram

If the perimeter of a rectangle is 46 cm and the area is 132 square cm, then what are the dimensions of the rectangle?

The APR can be used to compare different loans. True False

A study shows that an increase in the cost of potatoes results in a decrease in the amount of potatoes sold.

How many different integers can have the same absolute value? give examples?

A box contains 15 balls numbered 1 through 15. Two balls are drawn in succession without replacement. If the second ball has the number 4 on it, what is the probability that the first ball had a smaller number on it? An even number on it?

What is 1/3m-1-1/2n when m=21 and n=12

0.82 times what = 0.0082?

Let a be an irrational number. Is - 24+a rational or irrational?