What is the equation of this line

a. y=x-3

b. y=-1/3x-3

c. y=3x-3

d. y=-3x-3

Multiplying an even number of negative numbers gives an answer that is choose from:

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20