Annika borrowed a book from the library and forgot to return it on time. the library charges $0.25 per day for the first four days and $0.30 per day for all of the remaining days. if annika had to pay the library $4.00, how many days late was her book?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

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