Alguien me ayuda con estas 6? 1: (m^2n-5) (m^2n-7)=
2: (-16p^5q^3 + 25pq^5) (2p^4q)=
3: (a + 1) (2 + a^2 - 2a - a^3)=
4: ( 3x^2 - 6x +7) (4ax^2)=
5: (x -3) (x -3)=
6: (4x - 10) (2x + 3)=

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?