Your family went out to eat. The total bill was
68.50. How much tip schools you leave using 15 percent.

What's the difference between: x≥0 and nonnegative integer. ?

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Me with this one question, and i'll upvote the brainliest answer