Bob is going to the diner. He buys a egg and cheese sandwich that costs $7, an omelet that costs $12, and he got a grilled cheese with tomato that costs $10. Including a tip of 20% for the waitress, how much will Bob's meal cost?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.