Please help me answer this; “Always” , “never” , or “sometimes” question

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

Asalad dressing recipe calls for 1 teaspoon of vinegar and three tablespoons of olive oil to only make 1/3 of the recipe for a single portion how much of each ingredient would you need