Mrs. Drake is grilling the hamburgers. Some people like big patties, some medium patties, and some small patties. 1. How many 1/8 patties can she make from 7/8 of hamburger? 2. Sam has 3/4 of a can of hot chocolate mix for drinks to keep everyone warm. To make a cup of hot chocolate, San adds hot water to one scoop of hot chocolate mix. The scoop holds 1/24 of a can. How many cups of hot chocolate can Sam make? (PLEASE GIVE AN EXPLANATION)

Find the product of (4x + 3y)(4x − 3y). 16x2 − 24xy + 9y2 16x2 − 9y2 16x2 + 24xy + 9y2 16x2 + 9y2

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2