Is this correct? I just want to make sure.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?