32. which list shows common multiples for 6 and 15?
[a] 30, 60, 89 [b] 30, 59, 90
[c] 31, 60,
witch are right

No answer is correct.

Step-by-step explanation:

To determine out, the listed option is matching with the common multiples of 6 and 15; we have to find the multiples of 6 and 15.

6 = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60.

15= 15, 30, 45, 60, 75, 90, 105, 120.

Option A: 30 and 60 can be the multiples of 6 and 15; however, 89 can not be the multiplies. So it is not an answer.

Option B: 30 and 90 can be multiplies of 6 and 15; however, 59 can not be the multiplies. So it is not an answer.

Option C: 90 can be multiplies of 6 and 15; however, 31 can not be the multiplies. So it is also not an answer.

A

2x + 3y = -6

3x - 4y = -12

<=> 6x + 9y = -18

6x - 8y = -24

=> 17y = 6

2x + 3y = -6

<=> y = 6/17

x = -60/17

=> A