For 1 you can use 2 or -4, either one works.
Answer:
Diameter: 4km
Radius: 2km (divide diameter by two)
Circumference Formula: c = dπ or c = 2rπ
Circumference Value = 4π or 2(2π)
(the actual answer is 12.56, just do the math)
Step-by-step explanation:
Answer:
C and D
Step-by-step explanation:
200+12m= 644
subtract 200 from both sides
12m= 444
divide both sides by 12
m= 37
he sold 37 albums
