A shopping center plans to buy some desks, cupboards, and beds. They will buy a total of 300 pieces of furniture. The ratio
of the number of desks to cupboards to beds it plans to
purchase is 5:3:2.
They budget $139,500 to buy the furniture. A desk costs $250
and a bed costs $500. What is the price of a cupboard?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec