A ferry operator takes tourists to an island. the operator carries an average of 500 people per day for a round trip fare of $20. The operator estimates that for each $1 increase in fare,20 fewer people will take the trip. What fare will maximize the number of people taking the ferry?

Can (2,3 and square root 10) be sides ona right triangle?

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5