30
40 - 30 = 10 if question is percent then 40 = 100% 4 = 10% 12 = 30% 40 - 12 = 28
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
It is: 30+35+27+40 = 132 and 132/4 = 33 which is the mean average
30 + 40 = 7070/2 = 35
30 + (30-10) = 50
30
These may help you answer your questions: 1, 2, 4, 5, 8, 10, 20 and 40.
25 Add the items together 10 + 20 + 30 + 40 = 100 Divide the total by the number of items 100 ÷ 4 = 25
40 - 30 = 10 if question is percent then 40 = 100% 4 = 10% 12 = 30% 40 - 12 = 28
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
It is: 30+35+27+40 = 132 and 132/4 = 33 which is the mean average
30 + 40 = 7070/2 = 35
The GCF is 10.
-10
40+-30=10
40