How much of a radioactive kind of silver will be left after 100 seconds if the half-life is 25 seconds and you start with 512 grams?

Volume of cylinder with a radius of 8cm and height of 25 cm

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?

How many zeros does the function f(x)=4x3-x2+1 have