Idon’t understand how to do a, b , and c

We’re gonna need a picture to refer to in order to figure it out. try reposting your question with the picture included.

7days is 168 hours in decimal form it is just 168 there is no decimal form for this because it is like 168.0 and there is no number you are dividing it by for it to be a decimal.hope this

44% of 325 is 143hope this