A circle has a diameter of 42 inches. What is the circumference of the circle? Use ?? for it.
(A) 33 inches
© 132 inches
D 264 inches
(B) 66 inches

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?