Which of the following ordered pairs is a solution of the given system of linear equations? { -5x=4y=9 x-4y=11} a. (–4, –5) b. (5, –4) c. (4, 5) d. (–5, –4)

i honestly dont know

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