Answer:
12h+20=M
Where H=hours babysitting and M= money made or total amount
in this case since it's only an hour the equation would be 12(1)+20=M
12*1=12 and 12+20=32 so in the one hour with homework help would give you 32=M just for one hour.
Note that the 20 never changes considering it's only the charge for helping with homework and not over an hour.
But since this only asked for an hour and never specified if it was with the homework help here's this
12h=M
Explanation:
Hope this helped.