In the figure below, , and is four times . Find .
A
B
C
D

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 .

If square root x = -7, then x= -49 true or false

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36