Answer:
24
Step-by-step explanation:
use Pythagoras theorem
a^2 + b^2 = c^2
18^2+b^2=30^2
b^2 = 30^2 - 18^2
b = √576 =24
Step-by-step explanation:
you must have left out important pieces of the equation.
what I can see and therefore solve is
-G + 2 = -12
-G = -14
G = 14
√15y*3√81y
√15y*√729y
√10935y^2
√729*15*y2
27y√15