Which of the following equations shows how the solution can be checked? Select the two correct answers. -2-1=3 3(-2)+(1)=1 1-(-2)=3 3(1)+(-2)=1

15

step-by-step explanation:

the answer is a if my teacher taught me correct

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu