If you add 12 marshmallows to each of 5 bags of marshmallows, and each bag started with the same number of marshmallows, the total number of marshmallows is given by the expression ­­­5(x + 12). Identify an equivalent expression. A. x + 12
B. 2x − 60
C. 5x + 60
D. 2x − 60

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 =

Add the fractions and simplify 1/2+ 1/3

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?