Please help , I dont understand

According to the online content activity for this lesson, what should you do if you do not understand the material you are trying to learn? a. try a new approach to learning the material. c. re-read the material b. give up d. find someone to give you the answers to the test select the best answer from the choices provided a b c d

Sorry two big valves your rpm will go down plus the smaller ones will give you more horsepower your rpm will go up the answer is b

If you walk up stairs,how u gonna pet yo dog? if you go to colloge,how you gonna fly? if you like school how u gonna be a person?