Round 6,482 to the nearest ten hundred

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

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

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled