(0.01)(-0.1)(10)(-100)

0.01−0.1⋅10−100

Multiply 0.1 and 10 to get 1.

0.01−1−100

Subtract 1 from 0.01 to get −0.99.

−0.99−100

Subtract 100 from −0.99 to get −100.99.

−100.99

the answer is 288

Step-by-step explanation:

The question is saying how many possible couse selections are there so that means you have to multiply the numbers

1 of 4 becomes 4      1 of 8 becomes 8.      1 of 9 becomes 9

4x8x9=288

Hope this helps :)