10 points Mr. Right spent $64.75 for five light fixtures and $12.50 for four light
switches. Each light fixture cost the same amount. How much did each
light fixture cost? *

  $12.95

Step-by-step explanation:

Let L represent the cost of a light fixture. The amount Mr. Right paid is ...

  5L = $64.75

  L = $64.75/5 = $12.95

Each light fixture cost $12.95.

You may notice that the light switches and their cost are irrelevant to the question.

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c