Question

Emily wants to buy a turquoise stones on her next trip New Mexico to give at least 4 of her friends. The gift shop sells stones for either 4$ or 6$ per stone. Emily has no more than 30$ to spend

Answer 1

Emily can afford to spend her money in a variety of ways: She can buy all $4 stones, she can buy all $6 stones, or she can purchase a combination. If she buys all $4 stones she can buy 7. If she buys all $6 stones she can buy 5. On the other hand with the combination method: She can buy 6 $4 and 1 $6.
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