Which number is not in scientific notation?
a. 6 ⋅ 10^ 25 b.2.01 ⋅ 10^ −2 c. 1.3 ⋅ 10^−4 d. 0.5 ⋅ 10^3

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?