What is the smallest angle of rotational symmetry that maps a regular pentagon onto itself?

For what type of equity loan are you lent a lump sum, which is to be paid within a certain period of time? a. a line of credit b. equity c. a second mortgage d. an amortization

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?