If a = a^(1/3) - a^(-1/3), show that 3a^2+9a-8=0

Which graph represents an even function?

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?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost