The circular rug below has a circumference of 40 feet. The circular rug is placed on a square floor. The rug touches all four walls. How much of the floor space is not covered by the rug (to the nearest whole number)?

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

If eh = hg and hg=16, find the diameter of k

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?