Iforgot the steps on how to evaluate functions like g(x)=|x+2|+3, find g(-6)

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Witch represents the inverse of the function f(x)=1/4x-12

I’m really confused and need your assist me with this question i’ve never been taught