Through which angle of rotation does the image of a regular pentagon coincide with its preimage? a. 90° b. 72° c. 60° d. 45° e. 30°

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k