Jeanne went shopping. She bought 3 DVDs for $12 each. She also bought 4 books for $9 each. Jeanne had a coupon for $10 off her total purchase. Write an expression to find the final cost. What was the final cost for Jeanne's purchase?

EXPRESSION:

((12×3)+(9×4))-10

FINAL COST:

$62

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

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