It takes 687 earth days for the planet mars to revolve around the sun once. how many earth days does it take mars to revolve around the sun four times

2748 days

Step-by-step explanation:

687 days * 4 revolves = 2748

step-by-step explanation:

ddd

$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)