The probability distribution for a random variable x is given in the table.
X
-5
-3
-2
0
2
3
Probability
.17
.13
.33
.16
.11
.10
Find the probability that x < 0

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

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?

Hello, i need compare km^2 and km. what's difference in this?