A) Find the GCF
B) Factor out the GCF
C) What are the solutions?

A) GCF =

B) (3b + 10) = 0

C) b = 0, b = -10/3

Step-by-step explanation:

i think it might be a but you might want a second opinion

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.