How is 1/2 + 1/4 solved differently than 1/2 + 1/3

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?