2,875,784,527 rounded to the nearest million

What is the quotient of -3/8and-1/3?

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm