The altitude of an object, d, under the force gravity is given by
the equation shown.
d = –16t2 + vt + h
on a level, empty field, a catapult launched a 30-pound stone
with an initial upward velocity of 48 feet per second. how long
will the stone be in flight?

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?