Which transformation will always map a parallelogram onto itself?
o a.
a 90° rotation about its center
ob. a reflection across one of its diagonals
o c. a 180° rotation about its center
od.
a reflection across a line joining the midpoints of opposite sides

han when lo ahe whn hew anh ? ?

explanation:

d≈7.07in

step-by-step explanation:

yes. we do proportions in probabilities.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads