The answer is 6/40. All the others equal 1/5.
Rearrange to
6ab+21b-8a-28 now factor 1st and 2nd pair of terms...
3b(2a+7)-4(2a+7)
(3b-4)(2a+7)
So it is the third one down...
Answer:
-10y + 11.4
I hope this helps you out
3+1.50n would be an expression for this
