A local florist buys a dozen roses for x dollars. He plans to sell the roses at a 40 % mark-up. What expression shows the selling price of the one dozen roses?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no

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