Peter inherits 15000 dollar and place money with a bank. the interest rate are 3 percent .how many money will he get after 1 year?

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 .

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount