Use calculators it helps me hope it helps you
Any number besides 20, 30, 40, 50, 21, 31, and 41 should work. The numbers with 0s have no ones and the numbers with 1s have only one one.
W+b=30
5.50w+8.75b=204
Use simultaneous equations to solve. Replace w with 30-b and plug into the second equation.
5.50(30-b)+8.75b=204
165-5.5b+8.75b=204
3.25b=39
b=12
She sold 12 belts.
Step-by-step explanation:
(4²-x²)³/²
or,(4+X) (4-X)