The important information's already given in the question can be used to find the correct answer.
In 1 hour Ursula earns = 9 dollars
So
In h hours Ursula earns = (9/1) * h dollars
= 9 * h hours
= 9h hours
So we have found from the above discussion that Sarah wrote the correct answer and it was 9h.
I hope you are satisfi3ed with the answer and the
explanation that I have provided. You can use this procedure for solving
similar problems.
Answer:
The study involves one or more treatment groups and a control
group.
48,x and x all lie on a straight line sooo 180-48=2x
132=2x
132/2=x
66=x
X=66
