Eduardo solved the following inequality and his work is shown below: . −5(x + 4) + 21 ≥ −3 + 4(x − 8). −5x − 20 + 21 ≥ −3 + 4x − 32. −5x + 1 ≥ 4x − 35. −9x ≥ −36. x ≥ 1. what mistake did eduardo make in solving the inequality?

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?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Factor the expression using gcf 9b+45