The GMC Casino has a new game. In order to play the game, the gambler is to pay $2. There is a 45% probability of losing $4, a 25% probability of breaking even, a 20% probability of winning $3, and a 10% probability of winning $10. Find E(X) = mu and find the population standard deviation.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

What number is 7 units left of -15?

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?