A coffee shop uses 4 liters of milk every day. a. If there are 15 liters of milk in the refrigerator, after how many days will more milk need to be purchased? 11 b. If only half as much milk is used each day, after how many days will more milk need to be purchased?

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

any options?

step-by-step explanation:

the answer is 21%.