Answer: 7,5
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given

Required
Fill in the gaps
Going by the given parameters, we have that

, when factorized is 
Hence; the expression becomes

Combine Fractions

Simplify the denominators

By direct comparison


Hence, the complete expression is

Without the tip it was $60. If you are being asked to add the tip it will be $69