I need it in a fraction and a decimal in the simplest form
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If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

The sum of two numbers is 12 and their difference is 18 what are the two numbers