An auction house sells raffle tickets for $1. there are 10 prizes, each worth $10. if 100 raffle tickets are sold, what is the expected value of each ticket?

$0
$1
-$1
$10

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge

How do you find percent change? ? i will give brainliest for the bestme i don’t understand