+scratchpad
f(x) = x +4
8(x) = 3x² – x
evaluate

Movie $5.50 soda $1.75 popcorn $2.25 candy bar $1.10 jeffrey left home with $20 in his wallet. he had a quick lunch that cost $8.47 and went to the movie theater. which of these activities can jeffrey do? a) go to movie and take two friends b) go to movie and have a soda, a popcorn and a candy bar c) go to movie, take a friend, and have a popcorn to share d) go to a movie, have 2 popcorns, 2 sodas, and 2 candy bars eliminate

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

An equation where variables are used to represent known values—function notation true or false