A blueprint for an art gallery uses a scale of 1 in : 4 ft. One of the rooms in the gallery measures 3 1/2 inches long on the blueprint.

How long is the actual room (in feet)?

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 .

896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2