Find all the powers of 3 in the range 3 through 1,000.

6.3x+14 and 1.5x-6 answer in simplified form

If the measure of xyz is 81 what is the measure of yz

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .