exam Maths Puzzle Numerical Ability

Suppose you receive a $50 gift certificate to the Cityside Music and Books store.All CDs at the store cost $9.99,and all books cost $5.99.You want to buy some books and at least on

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exam Other Question
The problem has to do with calculating on-line travel revenue. It reads:
More & more travelers are booking on-line reservations. The following table lists the on-line travel rev 15= -3(2q - 1)