Write the mixed number -2 and 7/18 as a decimal

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

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 .