Ben deposited $6500 in a simple interest account that pays 2.8% interest annually. If Ben leaves the money in the account for 12 years how much interest will he earn?

You can find the constant of proportionality by finding the ratio of

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.