Farmer mcdonald is building a fence around his pasture he is placing posts 6 feet apart and will stretch wire between them if the pasture is 36 yards long and 14 yards across, how many posts will farmer mcdonald need?

$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)

(a) the volume of the cone is 20/3 in3

hence, option a is correct.