Hello, could you help me pls :c

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.