47) find the sum of the two numbers and express the answer in scientific notation. 32.7 + (2.3 x 10-2) a) 3.2723 x 10 1 b) 3.293 x 101 c) 3.5 x 10-1 eliminate d) 3.5 x 10-2

Alright, so we know that there are 7 days a week with 24 hours per day.

24x7= 168 hours a week.

Convert the problem to an equation using the percentage formula: P% * X = Y.

Let's take the 40% that is Sleep and use it in the percentage formula with the 168 hours.

40%x168= roughly 67 hours.

Hope this helped!