Answer:
A and B are the answers on Edge.
Step-by-step explanation:
Answer:
I think this answer is 12.5
The solution is in the picture
The total cost for plumber number 1 expressed as a function of x is
c1(x)=45x+90
That is, the charge per hour times the number of hours plus the fixed charge for a visit.
Using the same pattern, write the function for the second plumber. Then set the two functions equal to each other and solve for
The answer is Lucy should be allowed to drink 1.25 ounces a day.