Answer:
20
Explanation:
30 which is the average to get =30+36+28+16+50+x
which is
30=30+36+28+16+50+x
after the addition divide it by the total points which is 6.
then you cross multiply which will be
30÷1=160+x÷6
which will be
160+x=180
x=180-160
x=20