Step-by-step explanation:
1

2)

3)
1+0i
4)

5)
3 - 4i
6)

Answer:
$567.5
Step-by-step explanation:
7.5 × 9 is 67.5 and Plus $500 would be $567.5
I took a picture so you can see the steps I took! hope that helps!
4x+1=13
4x=12
X=3
2x+y=8x-2y
2(3)+y=8(3)-2y
6+y=24-2y
3y=18
Y=6
The working out would be-
Pi x radiussquared
Pi x 64 = 201.0619298297468
Rounded to 2 decimal places =
201.06 feet2