I believe its additive Inverse Property
Well, first you have to convert to one unit... then simplify
D:H
150m:16500cm
150m:160m
150:160
30:33
10:11
Answer:

Step-by-step explanation:

Step 1: Divide the numbers

Step 2: Simplify

Step 3: Simplify

Therefore, the simplified answer is 
Answer:
Step-by-step explanation:
c - 0.06c = 0.94c
total bill = 0.94c