I’ll recommend b or c so choose answer c
f(x) =
g(x) = 
g⁻¹(x): x = 
x(y + 4) = 5y - 1 <em>multiplied both sides by y + 4</em>
xy + 4x = 5y - 1 <em>distributed x into y + 4 on left side</em>
xy + 4x + 1 = 5y <em>added 1 to both sides</em>
4x + 1 = 5y - xy <em>subtracted xy from both sides</em>
4x + 1 = y(5 - x) <em>factored y on the right side</em>
= y <em>divided 5 - x from both sides</em>
f(x) ≠ g⁻¹(x) so they are not inverses of each other
Answer: NOT INVERSES because f(x) ≠ g⁻¹(x)
You can download a font keyboard?
Answer:
10 units
10000 units
10100101 units and 20 units