Approx - 10%
72 students signed up for canoeing + the 23 students who signed up for trekking + the 13 students who signed up for both = 108 students
there are 120 students total, so you have to subtract 120 - 108 = 12
Now to find the percentage, you have to divide the number of students who didn't sign up for either, by the total
which is .1 = 10/100 = 10%
For the first one I believe that the numbers are both odd and I am not sure about the second one sorry
Rise over run
find the difference between two points
Exponent rules : (a^m)^n = a^(mn) and a^0 = 1
(4^9)^5 * 4^0 =
4^45 * 1 =
4^45 <==
It is 20 because if u divide 78 by 3.75 ( 3 3/4 ) than equals 20.8