What is the theoretical probability (as a decimal rounded to the nearest hundredths place) of wearing one unique outfit?

For a theoretical probability we need results of experiments

To round a number to the nearest hundredth , look at the next place value to the right (the thousandths this time). Same deal: If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the hundredths place, and then remove all the digits to the right.

b. b < 1 might be the correct answer

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.