In a fish tank there are 7 gold fish fish and 2 times as many yellow fish. how much fish are there?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68