I need some help pleaseee

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

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)