Need someones help on this!

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)