A book collector has 525 books, 72% of which were published prior to 1900.
How many books were published prior to 1900?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance