How much change should Mack get back when he uses $20.00 to pay for purchases totaling $14.35?

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick