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?
(–3, –0.90)
(–2.5, –0.75)
(4.5, 1.35)
(8, 2.40)

Since y represents the total fee and x represents the number of days late, our equation would be y = 0.30x.

Now since x represents a number of days, it should be a positive integer. This is because of course, we don't count a negative number of days late, and the library doesn't charge for late half-days, for example.

From the given points, only (8 , 2.40) has a positive integer for x. We can check that 2.40 = (0.30) x 8, so it also fits the equation.

Hope this helps!

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer