Mel spent $43.97 on three CDs. Two of the CDs were the same price, and the third CD cost $5.00 more than one of the other two CDs. The total cost can be represented by the equation 2c+(c+5) = 43.97, where c is the cost of one lower-priced CD. What was the cost of the lower-priced CD’s? A.$11.28 B.$17.99 C.$12.99 D.$14.66

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

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Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)