What is the exact area of a circle with a diameter of 18 feet

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year