Chen is covering a 12-in. by 10-in. board with 1-inch-square tiles. he uses gray tiles to make six 2-in. by 2-in. squares. he covers the rest of the board with white tiles. how many more white tiles than gray tiles will chen use?

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?

Use the given information to determine the exact trigonometric value.