Choose 1 correct answer. Giving Brainliest its for my sis practice! Is it the first one?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale

How much is $1200 worth at the end of1 year,if the interest rate is 5.5% is compounded quarterly.