Step-by-step explanation: If the baby uses 15 diapers every 2 days, to get the answer we would need to determine the number of days then multiply that by 15. So...there are 365 days in a year, divide that by 2 and you get 182.5 days. Multiply that by 15 and it's 2737.5 but since a baby can't use a half diaper, we'll round it to 2738.
7.5 x 365 days = 2737.5 diapers
365÷2×15=2737.5 or 2745
2738 diapers this year.