Which set of transformations would prove AGFE - AGHI?

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

Factor the monomial completely 42a3b3

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)