D. 339 because 9*10=90+7*34=234+90=324+7=331+8=339
3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3
2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4
same slope, different y int = parallel lines = no solution = inconsistent
Answer:

Step-by-step explanation:
Txbx3 expand-
3 (t * b)
*= times btw
You have the right answer but for the second part it's 65+10/5=x