A) = . = B) =

D)(1,2)²=

E)(0,9)²=

F) =

G) =

H) =

O) =

J) =

K) =

I) =

M) =

N)(7)³=

O)=

P)(-0,5)²=

Q)(0,3)³=

R) =

S) =

T) =

U)=

V) =

W) =

X) =

Y) =

Z) =

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870