-Sally was absent yesterday and doesn't have a clue of how to combine like terms. Please explain the concept with examples for Sally so that she is not
lost in class today.

answer: b

step-by-step explanation:

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be

wouldn't that be a) 1

4=4x then divide 4 on both sides and you get x=1