1.[x]represents the greatest integer less than or equal to x and [x] represents theleast integer greater than or equal to x.
Column A：{[1.+[1.4]}/
Column B： 1.4
2. If the actual temperature is 13 degrees Fahrenheit and the windspeed is 14 miles per hour， then the apparent temperature could be
A.5 degrees Fahrenheit B.-1 degrees Fahrenheit C.-0 degreesFahrenheit
D.-5 degrees Fahrenheit E.-3 degreesFahrenheit
3. Which of the following can be inferred from the table?
(1).The apparent temperature for an actual temperature of 0 degreesFahrenheit and a wind speed of 15 miles per hour is the same as that for anactual temperature of 30 degrees Fahrenheit and a wind speed of 40 miles perhour.
().At a constant wind speed， as the actualtemperature increases， the difference between the actual and the apparent temperaturesalso increases.
(3).At a constant actual temperature of -10 degreesFahrenheit， the apparent temperature decreases at a constant rate as the windspeed increases.
A.(1)only B.()only C.(1)and(3)only D.()and(3)only E.(1)()and(3)
4. From 198 to 1987 the price of a Brand x candy bar increased byapproximately what percent?
A.40% B.50% C.70% D.150% E.50%
5. How many times between 1971 and 1991 did the price of a Brand xcandy bar increase while the weight decreased?
A. one B. two C. three D. four E. five