Barry is hosting a Super Bowl party and offers 7 different kinds of chip dip. If a party goer can choose any number of chips dips for their chips, how many chip dip combinations are possible?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Why is studying fractions important

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.