At a constant rate 8 inches in 12 hours rate per hour ?

Which statement justifies why angle ebc measures 90?

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?