I believe this this the function.

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Combine like terms so 12b=12b
Then divide by 12 which then b=1
Hey there! I'm happy to help!
We have $100.75 to spend.
Each spool costs $3, and we have 24 spools.
3×24=72
Each glue costs $1 and we have 7 packages of glue.
7×1=7
We add up these expenses.
72+7=79
And we subtract from our total amount.
100.75-79=21.75
So, Joanna has $21.75 left after buying these things.
Have a wonderful day and keep on learning! :D


hope this helps!
p.s. can i have brainliest?
Answer:
It compares two numbers that can represent many of things. For example, people, food & items.
Step-by-step explanation: