You set up a carnival booth game at a local fund-raising event. The game consists of rolling a giant six-sided die. Game participants pay $3 per roll. A participant who rolls a 6 wins a prize that costs you $8. A participant who rolls a 1 wins a prize that costs you $2.50. Participants who roll other numbers win nothing. An average of 35 participants play your game each hour, and the event lasts 8 hours. How much money do you expect to raise during the event

Math it's appreciated. (picture provided)

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?