Consider the system of equations. x – 3y = 9 1 5 x - 2y = -1 Which number can be multiplied by the second equation to eliminate the x-variable when the equations are added together?
-10
-5
5
10

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

What is the radical expression that is equivalent to the expression 27 1 over 5?

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters