Given xy+yx+x-3(xy) , i first apply the distributive property, which yields the expression xy + yx + x – 3x – 3y. i can then collect like terms: since x – 3x = –2x, i have the expression xy + yx – 2x – 3y as my final answer. a. the student failed to properly apply the distributive property. b. the student collected two or more terms that were not like terms. c. the student failed to collect all like terms. d. the mathematical work shown above is correct.

27 +27 or 27times 2=54

the diffrence is 0

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: