Well based on this information, I don't think that this is a valid inference. There isn't enough data to go off of in order to answer this question.
Mowing lawns, use your parents mowers and pay them 3 dollars per yard you mow, charge 8 dollars more than it takes for gas per yard, you buy the gas and pay your parents for borrowing the mower and you get 5 dollars each yard, you can change how much you make per yard if you want.
21 is 50% of 42.
42 x 0.5 = 21
Answer: (-7,1)
Step-by-step explanation:
121 right because 87+34 is 121 but do i have to round the number