A soccer ball has a mass of about 425 grams. A softball has a mass
of about 184 grams. What is their
total mass?

609g

Step-by-step explanation:

425+184=609

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.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value