Simply distribute the -3 across the b and -7.
-3(b - 7) = (-3 * b) + (-3 * -7) = -3b + 21
Hope this was helpful, if it wasn't just drop me a DM explaining what didn't make sense.
Answer:
Step-by-step explanation:
HERE ARE THE ANSWERS
Answer:
To find the average rate of change, we divide the change in the output value by the change in the input value.
Step-by-step explanation:
39=3m-15
39+15=3m
54=3m
54/3=3m/3
m=18
