Answer:
B. -72n+60
Step-by-step explanation:
We are given the expression:
-8 (9n-10) -20
We want to simplify the expression. First, distribute the -8.
Multiply each term inside the parentheses by -8.
(-8 * 9n) + (-8*-10) -20
-72n + (-8 * -10) -20
-72n + 80 -20
Next, combine like terms. Currently, we have two constants (terms without variables) that can be combined.
Subtract 20 from 80.
-72n + (80-20)
-72n + 60
The expression: -8(9n-10)-20, simplified is -72n+60. Therefore, the correct answer is B. -72n+60
