Hannah's pay varies directly to the number of hours she works. If she made $231 for 28
hours of work, identify the constant of
variation and write an equation to
represent the relationship

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?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?