Step-by-step explanation:
please mark me as brainlest
Call b the amount of babysitting hours and 5 the amount of gardening hours.
10b+5g=80
b+g=12
Subtract 5 times the second equation from the first to get:
5b=20
Thus, b=4. g=12-4, or 8. Therefore, Sarah spends 4 hours babysitting and the rest gardening.
A I think is correct, but you may want to get a second opinion.
The nearest tenth would be the first decimal place, so the answer would be 23.8
