How many solutions ? 1 solution , no solution , infinite solution ?

1.) n = 3; 1 solution

2.) no solution

3.) infinite solution

4.) x = -1; 1 solution

5.) x = 0; 1 solution

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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)