54:20 FREE
Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill.
Which expression represents the amount of change Huang should receive? Select THREE options.
100 - (12(3x))
100-(3x+12)
(100 – 12) – 3x
O (100 – 12)(x+x+x)
O 100 - (x+x+x) – 12
Subumi

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