How many different positive three-digit integers can be formed if the three digits 3, 4, and 5 must be used in each of the integers? 6 8 12 15 24?

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.