Joey has a beach ball with a radius of 20 cm. what volume of air will it hold when fully inflated? [round to nearest tenth.]

a)
83.8 cm3

b)
251.4 cm3

c)
1676.2 cm3

d)
33,493.3 cm3

What is the slope of the line (-7,2) (4,6)

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

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 : )