Answer:
The correct answer is 61.
Step-by-step explanation:
Undergraduate enrollment at Stellar University in the year 2010 was 2720.
Undergraduate enrollment at Stellar University in the year 2015 was 3025.
Therefore in two years there was a (3025 - 2720 =) 305 increase in number of students at Stellar University.
We have to relate a linear model for enrollment over time. Let y be the enrollment and x be the time.
The linear model would look like y - 3025 = [tex]\frac{3025 - 2720 }{2015-2010}[/tex] ( x - 2015)
Thus the slope of this line is given by [tex]\frac{305}{5}[/tex] = 61.