PLS HELP ME WITH THISSS URGENTTT

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

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

3 hours and 15 minutes

hope this : )