Burning one gallon of gasoline in a car releases approximately 20 pounds of
co2 into the atmosphere.
one person drives 60,000 miles in a car that averages 30 miles per gallon (mpg), while another person drives 60,000 miles in a car that averages 20 mpg. over the course of the 60,000 miles, how many fewer pounds of co2 are released by the 30 mpg car than by the 20 mpg car?

1000 fewer pounds simple because that if u do this 60000/30 is 2000 and the 20 mpg is 60000/20 is 3000

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)