Is 0.135135135135 rational or irrational

According to the normal model, what percent of receivers would you expect to gain fewer yards than 2 standard deviations below the mean number of yards

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315