Groups of 20 or more receive a 20% discount to the Memphis Zoo. Tickets range in price from $10.00 to $15.00, depending on your age. What is the range of ticket prices after the 20% discount is used? (Your hand written work must include a compound inequality to represent the situation)

Pls! does anybody know a shortcut for answering these types of questions in the future?

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?

100 points, hi, i’m not sure how to get the equation from the graph and table.