Respuesta :

Question 20

- 15 - 12 = -27

Question 21

(-15) x (-2) = + 30

Hope this helps!

Answer:

#20 is correct

#21 30

Step-by-step explanation:

#21 is (-15)(-2)

This is a multiplication problem. A negative × a negative is a positive.

15×2 = 30

-15 × -2 = 30