A plane has just crashed six minuses after takeoff. There may be survivors, but you must locate the plane quickly without and extensive search. It was traveling due west and the pilot radioed its speed every minute form takeoff to the time it crashed. These data are given below. Apporximately how far west of the airport did the plane crash?
| MINUTES | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
| SPEED (mph) | 90 | 110 | 125 | 135 | 120 | 100 | 70 |
A closed contained in the form of a cube having a volume of 1000 cubic inches is to be made by using six equal squares of material costing 20 cents per square inch. How accurately must the side of each square be measured so that the cost of material will be correct to within $3.00?