Radius of a circle with an area of 1017.9 square meters

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?

Which statements about these triangles is true

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?