Naomi has earned $54 mowing lawns the past two days. she worked 2 and a half hours yesterday

Sso naomi has earned 54 in 2 days so

54/2=27 or an avarage of 27 dollars per day and he worked 2 1/2 hours
so if we assume that he worked 2 1/2 hurs the first day also then
27:1 1/2
1 1/2=2/2+1/2=3/2
27=3/2
9=1/2
18=1/1
he earneed 9 dollars per hour