21. Mark is cutting a large cheese wheel into small wedges to sell in his store. The line plot shows the weight of the small wedges of cheese. How many wedges of
cheese will be less than 1/2 pound? (How many x's are less than 1/2?)

49xy +34y - 72z. determine the degree of the polynomial

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score