In one purchase, 12 pounds of cotton yarn and 7 pounds of wool yarn were purchased for $259.45. In another purchase at the same prices, 18 pounds
of cotton yarn and 9 pounds of wool yarn were purchased for $362.25.
What is the cost per pound for the wool yarn?

The unpaid balance on a mastercard charge was $1,056.23. during the month, payments of $300 and $250 were made and charges of $425 and $274.16 were added. if the finance charge is 1.2% per month on the unpaid balance, find the new balance at the end of the month. $1,205.39 $1,218.06 $918.06 $1,768.06