What is the sum of the first two multiple of 6

Name the most appropriate metric unit for each measurement

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18