A room is 10.2 m long, 8.5 m wide and 4.6 m high. It has a door measuring 1.5 m x 2.6 m and a window measuring 2 m x 1.7 m. Find the cost of tiling the walls at the rate of 13.50 per sqm

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)