5) A baker sold muffins, doughnuts and cupcakes in the ratio 13:5:4. The number of muffins sold was 80 more than the number of doughnuts sold. How many cupcakes did the baker sell?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq