Events a and b are independent. find the indicated probability. show your work!
a. p(a) = 0.3, p(b) = 0.5, p(a and b) = ?
b. p(a) = ? , p(b) = 0.9, p(a and b) = 0.45

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.