So the domain<span> is "all </span>x<span>". To </span>find<span> the </span>domain, I'll ignore the "x<span> + 2" in the numerator (since the numerator does </span>not<span> cause division by zero) and instead I'll look at the denominator. I'll set the denominator equal to zero, and solve. The </span>x-values<span> in the solution will be the </span>x-values<span> which would cause division by zero.</span>
Move constant over (5x=38+2), combine terms (5x=40), divide both sides by 5 (x=8)
60%
Solve by creating a proportion
27/45 = x/100
Cross multiply to get 2700=45x
Divide 45 on both sides to get x=60