Answer:
you can find the answers here :)
Step-by-step explanation:
https://www.wolframalpha.com
https://www.symbolab.com
-16.9x + 16 is the correct answer. You have to remove the parentheses, collect the like terms, and then simplify.
the answer is -3/2 and -11/2
Without any calculations it's evident it can't be neither B (both numbers are even, so they're divisible by 2) nor C (the numbers end in 0 and 5, so they're divisible by 5).
A.

Both numbers have a factor of 3, so they're not relatively prime.
That means it must be D. But, let's check it.

Indeed, those two numbers are relatively prime.