Please help!!!!!!!!!!! algebra
posted by Gabriel .
Quan is shopping. He can buy 2 pairs of pants and 1 shirt for $79.85 ( before tax is added). He can but 1 pair of pants and 2 shirt for $69.85 (before tax is added). To figure out how much a shirt or a pair of pants costs,you must first identify the variables. What are the variables in this problem?
a) 2 shirts; 1 pair of pants
b) how much more pants cost than shirts
c) the number of combinations of pants and shirts
d) the price of pants, the price of shirts

"To figure out how much a shirt or a pair of pants costs"
Now which of your choices deals with the price of each item? 
Shanne and Kate are preparing to go on long car trips with their families. Shane bought 8 books and 2 CDs for $73.50. Kates bought 3 books and 4 CDs for $69.95. Both totals were without tax. All of the nooks were the same price and all of the CDs cost the same. How much did a book cost?
a)$6.50
b)$4.50
c)$12.95
d)$5.95
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