Answer:
Write full question??what should we find in that question
Answer:

Step-by-step explanation:
Represent
- Andy with A
- Christopher with C


Required
Determine the ratio of C to A
Ratio is represented as thus:

Rewrite as fraction

This gives

Convert L to mL




--- Approximated
Answer:
7a-42
Step-by-step explanation:
you use the disturbtive property ( a (b-c)= ab-ac)