Some one me i don’t understand this

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Select all of the following expressions that are equal to 2.5.