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)

Step-by-step explanation:

Actually, in this problem we just have to apply common sense.

The question is asking for the ordered pair that is viable where x days.

If x represent days, then viable coordinates must have whole number, only positive, because negative days don't make sense, and decimal days also don't make sense to this problem.

So, the only option with this qualities is the last option, that's the solution.

In addition, we also can find a linear relation and see which point satisfies it. The linear relation for this problem would be:

y = 0.30x, that is, $0.30 per day.

If we use  x = 8, and replace it, we find that is solution:

y = 0.30(8)=2.4.

Therefore, the last option is which satisfies the linear relation.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.