I inserted a picture of the question can you please make it short

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?

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is