Which number line represents the solution set for the inequality 38 – 4x) < 6(x - 5)?

How do i do this activity, is appreciated

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25