Factor 15abc ? 9ab ? 3bcd completely. a) 3abc(5c ? 3a ? d) b) b(15ac ? 9a ? 3cd) c) 3(5bc ? 3ab ? bc) d) 3b(5ac ? 3a ? cd)

Find two rational expressions that have the difference of 2-n/n-4

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?