Solve y=.80x+100 based on bread machine costs 100. ingredients for one loaf is .80 and what is the cost to make 50 loaves of bread

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?

Solutions for 2x+7 less than or equal to 3x-5

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?