Which shows the pre-image of triangle XYZ before the figure was rotated 90° about the origin?

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?

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Somone me i want to know what 18 hours out of 24 hours in a fraction