Answer:
2^3 x 3 should be connected to 24, 2 x 3^3 should be connected to 57, and 2 x 3^2 x 5 should be connected to 90.
Also, when I say something like 2^3, I mean 2 to the power of 3. That also applies to 3^3 (3 to the power of 3) and 3^2 (3 to the power of 2).