Do this in 2 steps:
12 eggs on Sunday
Used 1/4 (3/4 is left) on Monday -- 3/4 of 12 is 9
Used 2/3 (6 eggs of the 9 left) (1/3 of the 9 are left in the carton) Tuesday
Wednesday morning 3 are left
The answer is C
Cost = (cost of pizzas)(#of pizzas) + (cost of toppings)(# of toppings)
T = 5c + 6d
297 what? I think you're missing out a unit. if it is 297 grams then the answer is 0.297 kilograms