Answer:
0.07
Step-by-step explanation:
Just put the value of the percent
40, 90, or 7 over 100
40/100, 90/100, 7/100
This yields
0.4, 0.9, 0.07
The sum of the k for k=1 to k="n"=(n*(n+1))/2 , where "n" is the total integer.
In this problem n = 200
Sum = (200*201)/2 = 20,100
