D. 90 im pretty sure its this. hope this helped :)
21 • (3k + 2m)
Step by step solution :
Step 1 :
Step 2 :
Pulling out like terms :
2.1 Pull out like factors :
9k + 6m = 3 • (3k + 2m)
Final result :
21 • (3k + 2m)
Answer:

Step-by-step explanation:
using the rule of exponents
= 
note that 6 =
, then
=
= 
Answer: x equals 12
Step-by-step explanation:
hope this helped