Apiggy bank contains $14.55 in quarters dimes and nickels. if there was three more than twice as many dimes as nickels and three less than three times as many quarters as nickels , how many of each coin was in the piggy bank

Find the value of the variable and the length of each secant segment.

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 .

What is the solution of the systems of equations? y=2/3x+3 x=-2