The graph shows a proportional relationship between the number of books sold at a yard sale and the amount of money collected from book sales.

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt