The quotient of a number and negative 2 is 5

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

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?

How do newtons third law of motion demonstrates on a rollar coster