Answer:
9 1/2
Step-by-step explanation:

There are 12 face cards and 4 fours in a deck so 16/52 total which can be simplified to
4/13
Original Statement: If x = 3, then x^2 = 9 (true)
Converse: If x^2 = 9, then x = 3 (false; this is half the story and x = -3 must be included)
Since the converse isn't completely true, we can't combine the two statements to get a biconditional.
Answer: B. (4x^2 + 20x)/(6x^2+x-2)
Division is the opposite of multiplication, so you just take 4x and multiply by x + 5, over 2x - 1 times 3x + 2, which is B.
3x12= 36 flowers for $78
78/36 = $2.16 per flower