:
which situation represents a proportional relationship?

a
sandra charged $3 for 2 bracelets and $6 for 3 bracelets.
b
jeff ran 4 miles in 20 minutes and 6 miles in 24 minutes.
c
lamont packed 27 glasses in 9 cases and 81 glasses in 27 cases.
d
anton placed 8 pencils in 2 boxes and 16 pencils in 8 boxes.

Divide each set to see if the answers are identical:

A: 3/2 = 1.5

  6/3 = 3

Answers are not the same so this is not proportional.

B: 20/4 = 5

24 /6 = 4

Answers are not the same so this is not proportional.

C: 27/9 = 3

81/27 = 3

Answers are the same so this is  proportional.

D: 8/2 = 4

16/8 = 2

Answers are not the same so this is not proportional.

The answer is C.

a: 1/6, j: 1/4

step-by-step explanation: you are welcome