Answer:
da part wich iznot in da solution iz step 4
-7 is term in the given expression
Price per hour of first case :
( Here, a is number of hours )
Price per hour of second case :
( Here, b is number of hours )
Let, after x hours both company charges the same.

Hence, this is the required solution.
2.25+2+1=5.25
answer is 5 and 1/4