Step-by-step explanation:
21.P
22.Q
23.P
24.S
25.Q
26.R
27.N
28.N
you pretty much have too find the other letter that finishes the shape.
so #21 it would be P because it is for the bottom shape/base shape. and you already have M,N and O so the last one you need too finish the shape is P. and the same concept for the other awnsers
Hope this isn't too complicated and helps u out!
Brainlest??
