What is the best approximation of the volume of the ball?

a regulation basketball has a diameter of about 9 inches.

a)382 in^3
b)215 in^3
c)3050 in^3
d)84.8 in^3

and tell me why

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4