Answer:
I'm notttt sureeeeee I think its C i don't know,
Both expressions equal 5 when substituting 2 for x because the expressions are equivalent. Hope this helped :D
So get b alone.
A=bh
Divide by h
A/h=b
b is alone
And just to rearrange:
b=A/h
3÷8+1÷8-(9÷8+5÷8)
=3÷8+1÷8-(14÷8)
=3÷8+1÷8-14÷8
=(3+1-14)÷8
=-10÷8
=-5÷4
=-1.25