Each day that a library book is kept past its due date, a $0.30 fee is charged at midnight. which ordered pair is a viable solution if x represents the number of days that a library book is late and y represents the total fee?
a. (–3, –0.90)
b. (–2.5, –0.75)
c. (4.5, 1.35)
d. (8, 2.40)

The correct option is D.

Step-by-step explanation:

Lets have an explanation at each option.

Option A and Option are not valid.

The reason is that the value of number of days can not be negative and in option A and B, value of days -3 and -2.5 is negative.

Option C is also invalid because the library charges fee for the full day.  Library would not charge for 4.5 days, so the number for days would be a whole number.

Therefore the option which satisfies our condition is option D.

Let's solve:

(8, 2.40)

In this solution the value of x is 8

and the value of y is 2.40

Then,

y= 0.30*x

2.40 = 0.30* 8

2.40 = 2.40

Option D is correct

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

cosine

step-by-step explanation: