Customers waiting at Ellerton Bank have been complaining about the amount of time they must wait in line. Managers at the bank, beginning to investigate the problem, have recorded sample waiting times for 9 customers at the bank. Here are the 9 waiting times (in minutes):
20, 14, 20, 11, 10, 6, 10, 8, 22

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)