Which best describes two figures that are similar?​

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5