Answer:
The cost per meal not including the $5
Step-by-step explanation:
or whatever is says something like that
Let Karen works x hours baby sitting
So, she worked (18-x) hours giving music lessons
So,
According to question
5x + 12(18-x)=139
This gives
7*x=77
x=11
So,
<span>Karen worked <em>11 hours baby sitting </em>and (18-11)=7 hours giving music lessons</span>
(-6y-2)+5(3+2.5y) expend
-6y-2+15+12.5
6.5y+13
The answer is 0.73 hope it helps
