The granola Summer buys used to cost $6.00 per pound, but it has been marked up 15%. a. How much did it cost Summer to buy 2.6 pounds of granola at the old price? b) How much does it cost her to buy 2.6 pounds of granola at the new price? c) Suppose Summer buys 3.5 pounds of granola. How much more does it cost at the new price than the old price?

The granola summer buys used to cost $6.00 per pound but it has been marked up %15 Question: How much did it cost summer to buy 2.6 pounds of granola at the old price.=> previous price of granola = 6.00 dollars per pound=> marked up 15% = 15% / 100% =.15 solve:=> 6 *.15 =.9=> 6 +.9 = 6.9 dollars per poundNow, you want to buy 2.6 pounds=> 6.9 * 2.6 = 17.94 dollars