Question 671845
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Hi,
Find the cost per ounce{{{highlight(C)}}} of sunscreen made from of 130 oz. of lotion that cost$3.44 per ounce 
and 90 oz of lotion that cost $10.04 per ounce
 130•3.44 + 90•10.04 = (130+90)C   
 (130•3.44 + 90•10.04)/220)= C         ||Solve for C