Mary Jo deposits $300 each month into her retirement account that pays 4.5% APR compounded monthly.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?