Answer:
5a. Tip was 17.65%
5b. Total was $35.4
Step-by-step explanation:
5a.
Create the following equation:
17 + 17x = 20
17x = 3
x = 3/17
5b.
Find 18% of 30.
30 x 0.18 = 5.4
Add 5.4 to 30.
30 + 5.4 = 35.4
5 because if you divide the 24 ounces in 5 cups you get 4.8 but you round it up to get 5
25% is 1/4 so you do 8 times 1/4 and that's 2.