HELP!!

Which table represents a direct variation function?

a. Input x 1 2 3

Output y 3 5 7

b. Input x 6 9 12

Output y 8 12 16

c. Input x 4 6 8

Output y 7 9 11

d. Input x 3 4 5

Output y 9 16 25

Which expression is equivalent to the expression shown?

With number 11 ( show how you got the answer)

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?