Maria’s current car gets 24 miles per gallon. Last year she drove 15,000 miles. Last year gas cost an average of $1.35. a. How much did Maria spend for gas for her car last year?

b. Maria busying a new car that is more gas‐efficient and should average 32 miles
per gallon. If she drives the car 15,000 miles in the next year and gas costs an
average of $1.35, how much will she spend for gas in the next year?

c. How much money will Maria save in gas costs in the next year by driving her new
car as opposed to her old one?

d. What percent decrease in gas costs for one year will Maria realize by driving her
new car?

The correct answers are:

a. $843.75!

b. $632.81!

c. $210.94!

d. 28.57%!

Step-by-step explanation:

I had these on my quiz and I got them all right :)

(P.S. please mark this as brainliest it really helps)

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:

7

step-by-step explanation:

the answer would be 7