There are 412 students at sunshine middle school. 225 students are in 5th 6th grade and the rest are in 7th or 8th grades. How many students are in 7th or 8th grades. Show work, please.
A textbook company ships a dozen crates to ocean Hill collegiate. Each creat contains 16 textbooks. Each textbook has 89 pages. How many total pages are in the shipment. Show work, please.