Log3(2x-5)=2 Answer is 41/2.  Why?

Nine more than four times a number is the same as one less than twice the number. find the number?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?