henry is making a corn grits that calls for 1/4 cup of corn grits for every 1/2 cup of water. how much water will he need if he uses 1 1/2 cups of grits?

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 .

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Tan198=asin164=? how to solve this? ?