How to change a subtraction problem into an addition problem

For every 2 minutes that Mandy plays on the computer she plays outside for 5 minutes what is the ratio of minutes Mandy plays on the computer to minutes she plays outside?

Simplify the expression 43 + 2 (3 - 2).

Solve this system of linear equations. Separate the x - and y-values with a comma. 7x + 9y = 10 -2x + 6y = - 20

What is - x^2-2x^2? also what is - 5x-x?

Given the function f (x) = 8+2x2, calculate the following values: f (a) = f (a+h) = f (a+h) - f (a/) h=

Score: 0 of 1 pt 7.4.41 From a standard 52-card deck, how many 5-card hands consist entirely of black cards?

The puzzle company packs standard sized puzzels into boxes that hold 8 puzzeles how many boxes would it take to pack up 192 standard sized puzzles

Elena always puts 5/12 of the money she makes at work in her savings account. If she made $192 at work, how much money did she put in her savings account?

The price of gasoline was 96¢ a gallon before it went up 25%. How much did it go up?

There is a 4-foot fence that surrounds your backyard. The fence casts a shadow that is 5 feet long. If you are 6 feet tall and standing next to the fence, how long will your shadow be?