An = (n-1)
+ 2.4
4, =-1
Write an explicit formula for the arithmetic sequence

Which of the following are accepted without proof in a logical system? check all that apply.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

What is the period of the sinusoidal function ?