Solve for r (will give Brainliest)

64pi = 1/3 pi r^2 x 3

Write a story that matches with the expression 42x-5 pls hurry

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.