Can you help me with numbers 1,2,3 I will mark you Brainiest please I need your help

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

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 : )

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.