You lend $240 to your friend. He pays you back $270 in one year . What interest rate did you charge your friend?

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.