Answer:
I'm guessing it is 3x(9x20)=3x180=540
Step-by-step explanation:
67
7x9=63
63+4=67
Take out the greatest common factor
The GCF is 3
3(9w^2-4)
X=1/5
7×-2×-10=-9
5×=-9 +10
5×/5=1/5
×=1/5