329
It is: 28/40 times 100 = 70%
-40 + 70 = 30
The mean value of 100, 70, 70, and 20 is 65
the sum for 20 + 40 + 70 + 80 = 210
100 + 70 = 170
40
percentage = 40%% rate:= 28/70 * 100%= 0.40 * 100%= 40%
190
40
42 + 79 = 121 (40+70) + (2+9) = = 110 + 11 = 121
11. 10, 20, 30, 40, 50, 60, 70, 80 and 90 have One 0's each plus the number 100 has Two 0's hence making the total as 11.
70