If the rectangle is englarged using a scale factor of 2 what will be the perimeter and area of the new rectangle

How do i solve using pythagorean theorem?

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?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels