What is the value of x in f(x)= (x-3)(x+2)?

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Two parallel lines are crossed by a transversal.what is value of x

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?