Answer:
-4
Step-by-step explanation:
-3x + 6 = 18
subtract 6 from both sides
-3x + 6 - 6 = 18 - 6
-3x = 12
divide -3 to both sides
-3x/-3 = 12/-3
x = -4
-3x - 6 = 18 - 6
38π cm
The area of a circle of radius r is A = 2πr.
If the radius is 19 cm, then the area is A = 2π(19 cm), or 38π cm.
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