Question

PLEASE HELP I ADDED A PIC TOO!

Answer 1

C.
`| v -21 | \leq 0.15`

Explanation:

Because the volume is either 0.15 more or 0.15 less than 21 ounces.
`| v - 21 |` indicate the difference between the volume and 21 and it has to be less than 0.15. Therefore answer C.