Which measurement is not equivalent to the others?

36 inches
3 feet
1/100 of a mile
1 yard

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

How can you tell when x and y are not directly proportional?