Answer:
a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
Step-by-step explanation:
I think it's 34.5 (I need more letters so I'm typing this)
You can do 4 to the second power and 4×4 equals 16
11 is the answer.
10+10=20
20-9=11
11+9=20
11
