−15=−0.5x solve for x

x = 30

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Divide - 0.5 from both sides:

(-15)/-0.5 = (-0.5x)/-0.5

-15/(-0.5) = x

x = (15/0.5) = (15/(1/2)) = 15 * 2 = 30

30 is your answer for x.

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$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)

because they could drop even lower..