Let log5 125 = x
Removing log you get 5^x = 125
Rewrite 125 as 5^3
Now 5^x = 5^3
x = 3
2,8 meters than cuts it into 7 equal parts so each piece will be
2,8/7 = 0,4 meters
hope helped
There are 8 possible choices and of those you need to choose 5.
When the word choose shows up, use combinations formula.
8C5=56 combinations of 5 friends receiving tickets.
Hope I helped :) <span />