What is the inverse of f(x) = one-thirdx + 2?

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

In what form is the following linear equation written y=9x+2

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,