The angle of elevation of the top of a water tower from a point on the ground is 19.9º. From a point 50ft closer to the tower the angle of elevation is 21.8º. Find the height of the tower

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 .

Select a graph that have an equation with a < 0

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list