Which Statement is true about figure DEF

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

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

What is the definition of exponential decay?