Answer:
Because he did his math wrong, you dont add, you subtract the whole thing
Step-by-step explanation:
15-9=6-2.65=3.35-1.35=2-3.48=-1.52
George did not put parentheses around the total snack amount to be subtracted from his $15. He needed to total the purchases and then subtract that amount from $15.
4 is always correct
By the chain rule,
When , we have