If you cut a piece of printer paper in half put the two sides on top of each other and cut them in half again and repeat the process until you make 20 cuts how tall would the stack be?

Iam assuming 3 is part of the question, whenever a number is next to parenthesis it means to multiple, but we do the parenthesis first, so it would be -10 in the parenthesis then you times that by 3, which would be -30.

The answer should be 6 groups of negative 5. this is because it is negative 5 times 6