You cannot measure the length of a ray of a pair of rays but you can measure a line segment
The answer is A. See the photo below:
Let the fraction be 5/5
remaining= 50%*5/5-1/5= 2.5/5-1/5=1.5/5
percentage =1.5/5*100=30%
I believe its 4 we haven't really went over it
95% * x = 95
95/100 * x = 95
0,95 * x = 95
0,95x = 95 / : 0,95
x = 100
