If the expression (2x^{3})^{2}\ (-5x^{4})(2x 3
)
2
(−5x
4
) was placed in the exponential form ax​b , where a and b are numbers, then what is the value of a+b? Show your Work

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 .

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Determine which postulate or theorem can be used to prove that lmn =nmo