HELP ME ASAP I NEED HELP SO BAD

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Nine more than four times a number is the same as one less than twice the number. find the number?

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.