If x = -5 is one solution of x2 +7x +10, what is the other solution?​

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 slope simplify your answer and write it as a proper fraction, improper fraction, or integer

One integer is 8 times another. if the product is 72, then find the integers