Answer:

Step-by-step explanation:

Answer:
circle area = 400*d^2
Step-by-step explanation:
3/4 * 3/4
Three quarter meaning 3/4
Of represents *
So the answers is (3*3)/(4*4)=9/16 or 0.5625
Answer:
2
Step-by-step explanation:
1+1=2 so the answer is 2
Answer:
=23x2+3x
Step-by-step explanation:
x2+4x+22x2+3x−4x
=x2+4x+22x2+3x+−4x
Hope this helps