Which is a simplified form of the expression 2(2j + 3) – 3j?
a. -j + 3
b. 2j + 3
c. j + 6
d. -j + 6

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.

I’m not good at math can i have ? ?