Which situation is best modeled by the equation 11 + x = 28? a. you pay $11 for a movie ticket and some amount at the concession stand for a total of $28. b. you have $28 left after spending $11 and some other amount. c. eleven friends each pay the same amount for a cup of fruit, and the total is $28. d. the price of a board game, $11, was decreased by some amount to $28.