The perimeter of a rectangle is represented by 6y^2+4y-10. The perimeter of a smaller rectangle is represented by y^2+2y+8. Write a polynomial expression (showing the steps) that represent how much larger the first rectangle is that the smaller one.

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 .

Me because some of question i don’t understand

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68