Respuesta :

Answer:

A. Yes

B. No

C. Yes

Step-by-step explanation:

A. 90 divided by -9 equals -10. So -10+10=0

B. -10 times -9 equals 90. 90+90=180

C. -90 dived by 9 equals -10. Subtracting a negative number is equal to adding it so -10 - (-10) = 0