Emily is saving up to buy a new phone. She already has $75 and can save an additional $7 per week using money from her after school job. How much total
money would Emily have after 4 weeks of saving? Also, write an expression that
represents the amount of money Emily would have saved in w weeks.

What would the saving be after 4 weeks?

Saving after w weeks?

saving after 4 weeks: 103

Saving after w weeks:7w+75

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: