Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.
a population of hyenas inhabits a tropical savanna. at the beginning of the year, there were 100 hyenas in the population. throughout the year, 20 hyenas died, 35 hyenas were born, 5 hyenas migrated into the population, and no hyenas left the population. what was the size of the population at the end of the year?

at the end of the year, there were (blank) hyenas in the population.