What can I multiple the number of cases by to get the number of paper towel rolls

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Which is f(5) for the function –2x2 + 2x - 3?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?