8.8-3.4=5.4
Just subtract 8-3 and 8-4 and you'll get 5.4
Hope it helps!

Brainliest please if you found my answer helpful! :)
Answer:
B.6
Step-by-step explanation:
f(2)=(2+1)2
=(3) 2
=6
Examples of conjunctions are and, but, or, yet. So your answer would be A. I hope this helped. :)
Answer:
C & D
Step-by-step explanation:
Yes you have a good example.
x = number of cookies
2*x = total amount spent on cookies at $2 each
2x-3 = amount you pay after the $3 discount is applied one time for the entire order
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a more numeric example may be this
Lets say you bought 12 cookies, so x = 12
This means it costs 2*x = 2*12 = 24 dollars total if the discount doesnt apply
However, the 3 dollar discount is there, so the grand total is 24-3 = 21 dollars.