Select the correct answer.
which transformation will always map a parallelogram onto itself?
a 90° rotation about its center
a.
b.
a reflection across one of its diagonals
c.
a 180° rotation about its center
d.
a reflection across a line joining the midpoints of opposite

Write the expression as a single natural logarithm. 2 in a - 4 in y

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?