Which of the following ratios forms a proportion with 4/15? A: 8/20
B: 7/18
C: 12/45
D:6/25

C: 12/45

Step-by-step explanation:

You have to divide the numerator and the denominator by the same number, and if once you divide it you get the fraction then it's the right answer. So lets take 12/45 and try it.

12/3 =4

45/3 =15

4/15

answer: 12

step-by-step explanation:

b. x + 1

step-by-step explanation:

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