Alex is mailing an envelope that weighs 0.346 pounds. What is the weight of the envelope rounded to the nearest hundredth?​

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

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.)

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.