Plz help asap
Calculate: 3•7=
A. -4
B. 4
C. 10
D. 21

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Which is the completely factored from of xy^3-x^3y

Write 17/20 as a decimal and as a percent.