Can someone please explain to me how to solve this problem I’m having trouble because I missed school today so I’m trying my best to makeup for it so please help me out!!!

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?

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the