PLEASE HELP 8TH GRADE EASY MATH Please do number 13,14,15 AND PLEASE SHOW WORK (I WILL MAEK YOU BRAINIEST!!)

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

Match each polynomial with its factorization.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.