Answer gets BRAINLIEST If q varies inversely as r, and g = 10 when r = 2.5, find the equation that connects a and r.

D.

Step-by-step explanation:

In direct variations, we would have:

Where k is some constant.

Since this is indirect variation, instead of that, we would have:

To determine the equation, find k by putting in the values for q and r:

Now plug this back into the variation:

The answer is D.

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.