Hey, TailsIsTheBest!
Great question=)
Question:What is the value of the expression f2 + 8 if f = 7?
Answer:22
Work:They already gave us the value of the variable f, so all we have to do it plug in 7 for f's place.
(7)2+8
7*2=14
14+8=22
I hope this helps;)
If you have any questions on my work, feel free to ask me.
