1. store a is offering karen’s favorite jeans at 15% off their regular price of $25. store b is offering the same pair of jeans at 25% off their regular price of $30. how much must karen pay at store a? how much must she pay at store b? at which store should karen buy her jeans?

2. store c is offering a backpack karen wants for 30% off their regular price of $45. store d offers the same backpack at its regular price of $30. at which store should karen buy her backpack?

3. store e offers a book that karen wants for 20% off its regular price of $15.00. store f sells the same book for $15, before a $3.00 mail-in rebate. where should karen purchase the book? explain your reasoning. (be sure to consider the cost of postage, as well as the time and effort required to mail in the rebate request in your response.)

4. store g offers a lunch kit that karen likes for 10% off its regular price of $20. store h sells the same lunch kit for $18.50, before a $6.00 mail-in rebate. where should karen purchase the lunch kit? explain your reasoning. (be sure to consider the cost of postage, as well as the time and effort required to mail in the rebate request in your response.)

5. store i offers a pair of shoes karen wants for 25% off their regular price of $12.00. store j sells the same pair of shoes for $10, before a $2.00 mail-in rebate. where should karen purchase her shoes? explain your reasoning. (be sure to consider the cost of postage, as well as the time and effort required to mail in the rebate request in your response.)

explain each one and how you solved it
you and i will pick brainliest!