The equation r= -0.028(t) + 20.8 can be used to predict the world record in the 200-m dash, where r is the record in seconds and t is the number of years since 1920. in what year will the record be 18.0 second?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. find the lateral area for the prism. l.a. = 0123456789