Help me please i'm bad at math

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3