In the 1918 baseball season, Ty Cobb had 421 at-bats and 161 base hits. What was his batting average? Write your answer as a decimal rounded to the nearest thousandth.

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase