When writing a recursive formula, whose initial term is 14 and whose common difference is -4. Which one represents that theory

In the 30-60-90 triangle below side s has a length of and side r has a length

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?