At $1.75 per square foot find the rental cost for an office 20 feet by 15 feet

Which of the following can be used to explain a statement in a geometric proof?

What percent of 18 is 24? and plz explain thx.

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.