Answer:
9 hours
Step-by-step explanation:
We can make a proportion and solve
She makes $306 for 17 hours of work,and she makes $162 for x hours of work
306/17=162/x
Cross multiply
306*x=17*162
306x=2754
Now we need to solve for x, by getting x by itself. x is being multiplied by 306; to undo this, divide both sides by 306
306x/306=2754/306
x=9
So, she needs to work 9 hours to make $162
