Two bakeries sell muffins that can be customized with different kinds of berries. berry bakery sells muffins for $14.50 a dozen, plus $0.50 for each kind of berry added. raisin bakery sells muffins for $12.00 a dozen, plus an additional $0.75 for each kind of berry added. let b be the number of the kinds of berries added. the equation that represents when the cost of one dozen muffins is the same at both bakeries is 14.5 + .5b = 12 + .75b.