Eliminate the parameter. x = t^2 + 3, y = t^2 - 2

a. y = x + 5, x ≥ 3
b. y = x^2 - 5, x ≥ 3
c. y = x - 5, x ≥ 3
d. y = x^2 + 5, x ≥ 3

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )