One inlet pipe can fill an empty pool in 9 hours, and a drain can empty the pool in 15 hours. How long will it take the pipe to fill the pool if the drain is left open?

Find the area of the parallelogram: Base = 15 cm Height = 21 cm Round to the nearest tenth and include units in your answer

What is the ratio 18 to 27 written as a fraction in lowest terms?

Karl needs to build a stage that has an area of 72 square feet. the length of the stage should be longer than the width. what are the possible whole number measurements for the length and width of the stage?

To win a certain state lottery, players must correctly choose 4 numbers (in any order) from the numbers 1 to 40. How many different 4 number combinations are there? A. 800 B. 91390 C. 160 D. 24

Stuart's bank account had a balance of - $54.19 last month. This month he won a cash prize of $70.82 for winning a competition. How much money does Stuart have at the end of this month, if there are no other transactions?

What is the solution to the inequality? -4 (x-6) ≤-2x+6

What other information do you need to immediately prove the triangles congruent using sas congurence with no additional steps?

a pizza parlor has 8 different toppings and 3 different cheeses to choose from on the menu. how many pizza combinations are possible if each pizza has 1 topping 1 cheese

An 80-pound bag of concrete mix will yield 0.6 cubic feet of concrete. Each bag costs $4.98. An artist wants to make a concrete sculpture consisting of three cubes, one on top of the other. The cube at the base will be 3 ft x 3 ft x 3 ft.

How do you know what to round a number by when it doesn't say it