Give the step-by-step reasoning process and then the final answer. Ian used a grocery delivery app to have his groceries delivered. His original order was $25 before delivery and tip. He noticed that 3 items changed on his order. A $0.99 can of tomatoes was replaced by a $2.20 can of tomatoes, his $1.00 lettuce was replaced with $1.75 head of lettuce and his $1.96 celery was replaced with celery that cost $2.00. Delivery and tip came to a total of $8.00. How much is his new bill now, with the food substitutes and delivery/tip?
He ordered a can of tomatoes for $0.99 but they subbed with one that cost $2.20 for a difference of 2.20 - .99 = $1.21. He ordered lettuce for $1.00 but they subbed with one that cost $1.75 for a difference of 1.75 - 1.00 = $0.75. His celery for $1.96 but they subbed with one that cost $2.00 for a difference of 2.00 - 1.96 = $0.04. That's an additional charge of 1.21 + .75 + .04 = $2.00 in groceries. His additional charges of $2.00 and the delivery / tip of $8.00 add 2 + 8 = $10.00 to the order. His original order was $25 and they added $10.00 so his new order is 25 + 10 = $35.00.
The final answer: 35.