The Cuyahoga County Public Library charges a late fee of 10 cents for every day a book is out past its due date. Suppose you have a book that is out past is due date. Is the late fee proportional to the number of days the book is out past its due date?

If your answer above is “yes”, justify your answer by writing an equation that displays the proportional relationship. If your answer above is “no”, justify your answer by showing an example in which doubling the amount of days the book is out past its due date does not double the late fee.

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?