Six plus six by second powe divided by 3 is what?

How do you find principle and simple interest

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation