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.

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36

12m

step-by-step explanation:

square root means have of a number so have of 3 is 1.5 then multiply it by 8 and you get your answer!