A store purchases an item from the manufacturer for $16 and sells it to the customer for $22.40. What is the percent markup on the item?

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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?

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2