Which answer describes the sequence {1,3,7,15,…} as a mathematical statement?

something to do with sets

Step-by-step explanation:

I think {odd numbers from 1 to 15 inclusive, there is something more to it but this is just a idea

n

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.