Acar is moving at 50mi/hr. if the car travels for 5hours how many miles (mi) did the car travel? make sure you include the proper unit. (not multiple choice)

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.