And show how to get the answer.
alexa bought 32 apples for $4.16. at that rate what would 1 apple cost?

Well, Alexa bought 32 apples, and ALL of those apples together costed $4.16 . You need to find what 1 apple would cost. All you really need to do is divide and check. 7.69

4.16/ 32= 0.13

This is the answer. Each apple costs $0.13 . To check your work and make sure you did the division right, you just multiply 0.13 by 32.

0.13 x 32= 4.16

You know that this is the correct answer because $4.16 was how much the original cost was. 

Therefore, 1 apple is $0.13 . 

127 millimeters is the answer