(5x^4y^-6)^2 write the answer with positive exponents i simply do not know how to go about solving this math problem

27 is what percent of 108? 27 is % of 108

Match each inequality to the number line that represents its solution

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?