Write -5 1/2
as a decimal number.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq