the extreme rock climbing club planned a climbing expedition. the total cost was $3000, which was to be divided equally among the members going. prior to the trip, 3 members decided not to go. if the cost per person increased by $225, how many people went on the expedition?

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0