Can someone please help Write an equation for these
y = mx+b
The first one is given:

Between 0 and 3 sec.
y = 30

Between 3 and 5.5 sec.

Between 5.5 and 7 sec.

Between 7 and 8.5 sec.

Between 8.5 and 9 sec.

Between 9 and 11 sec.

Between 11 and 12.7 sec.

Between 12.7 and 13 sec.

1 is b and 2 is d

step-by-step explanation:

the square root of what number? if you add that, then someone will probably answer the question.

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