2 Health and Fitness Masha is training for a marathon. She is doing tempo runs to increase her speed. In tempo runs, a runner varies their pace during the run. Masha jogs 1 mile, then runs at a fast pace for 11 miles. She finishes by walking 2 miles to cool down. Write a numerical expression to model the number of miles Masha runs, walks, or jogs.

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.