To get 150g of a 12% solution, do you need more salt than to get 120g of a 15% solution?

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

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?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?