Take my last 12 points friends... i am leaving this app forever and ever​

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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.