The total number of marbles is 30+20+50= 100, so. Since there are 20 red marbles and 50 blue marbles. There are 30+50=80. 80/100=4/5= 80%
<h2>39/6 = 6.5</h2><h2 /><h2>6 hours 30 minutes</h2>
If you mean to the nearest HUNDREDTH the answer is 14.60.

and so on, and then, you graph those x,y coordinates
PEMDAS
do parentheses first
4 x 10=40
40 x 10=400