Answer: 
Step-by-step explanation:
As per the given scenario,
Total money Christina made = (Money she made in tips) + (Per hour wage ) x (Number of hours she work in one night) (i)
Let M is the total money she makes and h is the number of hours she works in one night.
Here, Money she made in tips = $ 50
Per hour wage = $7.50
So substitute all the values in (i), we get

Hence, the required function is
.
Answer:
Faces
Explanation:
I'm not sure how to explain it but imagine looking at a soccer ball with a smiley face drawn on it. I mean thats its definition its hard to explain it without using its word in a sentence.
Answer:
8
Step-by-step explanation:
1. 1/4 × 2/2 = 2/8 (denominator is 8)
2. 5/8 × 1 = 5/8 (denominator is 8)
Therefore, the common denominator is 8.