7 simple and 3 deluxe bracelet
Answer:
4712.4 mL
Step-by-step explanation:
I believe you are trying to solve for the volume of a cylinder. If that's the case, the formula would be: 
Use the volume of a cylinder formula. Plug your known values into the formula. Then, simplify.

100
*15
1500
4712.4 mL
Stephan originally spent 110 dollars. He made 33 dollars.
Add the 124 and 19 to get 143 dollars. Then, divide by 1.3 (the number as a decimal when converted) which gets the original price it was sold for. Then, subtract 110 from 143 and you get the difference of 33 dollars.
Notice the denominator is multiplied by 3, do the same to the numerator: 3*3=9
so 9 is the answer