Answer:
D
Step-by-step explanation:
because multiplying a negative and a positive of the same number produce a zero
r= 9
radius (r) = diameter (D)/2
= 18/2
= 9
Substitute the value of the variable into the expression and simplify.
9
(3)(2x) + 3 (-4) + - 1n
6x + -12 + - n
Answer -n + 6x - 12
1.3-b
-1.7-e
1.7-a
-0.8-d
-0.2-c
