Answer:
I think 2+-1x+9y
Step-by-step explanation:
Just add the numbers that have the same variables
Answer:
-55
Step-by-step explanation:
2nd term=> -1 + -2 × (2 - 1)
3rd term=> -1 + -2 × (3 - 1)
:
28th term=> -1 + -2 × (28 - 1)
=> -1 - 54 = -55
Answer:
It's B, I'm only trying my best since there is no picture.
Step-by-step explanation: