The pizza costs $9.75 each you buy 3 pizzas and eat 1/5.  How much pizza did you eat? how much pizza is left over? helpp

1/5 pizzas; 2 4/5 pizzas

Step-by-step explanation:

the cost is unneeded information

if you bought 3 pizzas but only ate 1/5 of a pizza you subtract them

3 - 1/5 is 2 4/5 or 2.8

you ate 1/5 of the pizzas and have 2 4/5 left

Step-by-step explanation:

You bought 3 pizzas.

You ate 1/5. It can be as 1/5 of one pizza or 1/5 of all pizzas.

The first case:

The second case:

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.