Answer:
b one because:
first you have to add the first number both the side
The answer of you're question is C
Answer:
150000
Step-by-step explanation:
I believe it's A. Sometimes you have to take an educated guess.
20. square-10+10=20x2=400m^2
circle- 3.14x10^2=3.14x100=314
400-314=86
86m^2
21.i don't get 21 sorry
