The answer is 45.
You have to multiply 15% by $3.
When you multiply them you get 45.
There are 2 different pillows, 2 different sheets and 3 different comforters.
Multiply all the choices together to find all the combinations:
Total combinations: 2 x 2 x 3 = 12
There are 12 different combinations.
Hello,
the only bijection is D
Others f^-1(x) have 2 images.
Answer D.
The answer is square root 6/2