Answer:
-1/10
Step-by-step explanation:
3 x (-5)
-15
10 x (-9)
-90
-15/90 divided by 5
-3/30 divided by 3
-1/10
Answer:
15
Step-by-step explanation:
Sum means the result of an addition, so 20-5=15
True. For example, if 2 is a, and b was 0, then ab would automatically be 0. Both a and b can be 0 though, but at least one of them must be zero.