Answer:
Step-by-step explanation:
Divide both sides by 9 to isolate x:
Hope this helps!
A = r² π
254.469 = r² π
r² = 254.469 : 3.14159
r² = 81.00866
r = 9.0048
C = 2 r π = 2 * 9.0048 * 3.14159 = 56.55 units
D. 8 + 6n
8 more than means to add 8
Product of 6 and n is 6*n or 6n
So it would be 6n + 8, which turned around is 8 + 6n
Her favorite numbers are 8 and 18.
8 + 18 = 26.
8 * 18 = 144.