Write two expressions that show that decreasing a quantity by 10% is the same as multiplying that quantity by 0.9​

Step-by-step explanation:

x -0.1x = x(1-0.1) = 0.9x

$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)

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high