A pool contains 6000ft of water. Pump A can drain the pool in 15 hours, pump B can drain it in 12 hours, and pump C can drain it in 10 hours. How long will it take all three pumps working together to drain the pool?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Simplify the expression 10/11(22z) + (a+5) -1

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons