Permutation:
5! = 5 * 4 * 3 * 2 * 1 = 120
She can expect 70 to be ads since there is 10 times more emails so 7 times 10 is 70 so 70 ads
The median is 152 internet users :)
15 /6÷ 5/6
when we divide fractions we do the reciprocal of the second number that is of
5/6 = 6/5 and then multiply it by the first number
15/6 x 6/5
ans) 3
