Me ! if i dont fix this im going to get am

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

What is the volume of a rectangular prism that is 120 centimeters by 2 meters by 1.5 meters in cubic meters?