There will be a total of 76 people attending your birthday party. You can afford to rent 10 tables, round and/or rectangle where each cost the same. Each round table can seat 6 people and each rectangular table can seat 10 people. How many round and rectangular tables should you rent?

7 rectangular and 6 round

Step-by-step explanation:

that would use up 8 tables that you can afford however that would only be the answer if you don't need to use exactly 10 tables

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.

5+2x=a

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