Madame dubois bought 20 pearl necklaces for $500. becoming bored quickly, she sold ¾ of them at $40 each, and sold the rest at cost price. how much money did she make?

$225

Step-by-step explanation:

20 for $500

1 for $25

3/4 of 20 is 15

15x40=$600

5x25=$125

600+125=$725

$725-$500= $225

$500 is from how much she first spent. So you're basically finding the profit.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.