What are the powers of three that are in the range 3 through 1000

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

For the inequality |c| < |d| to be true, which of the following must be true?

Akid's pool is cylindrical and has a radius of 5 feet and a height of 2 feet. if a cubic foot holds about 7.48 gallons of water, how many gallons of water does the kid's pool hold? 21 gallons 52.3 gallons 1,174,4 gallons 157 gallons