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# Three Friends

ALGEBR-ENFN8B

Three friends went to the zoo. The total cost was $\$18.50$. One friend paid$\$7.50$, and one paid $\$3.50$. What was the cost for the other friend? Choose which equation would best represent the cost for the third friend. A$18.50 - 7.50 + x = 3.50x = -7.50$B$x + 3.50 + 10.00 = 18.50x = 5$C$7.50 + 3.50 + x = 18.50x = 7.50$D$x - 18.50 = 12.00x = 30.50\$