Shaina and Aaron are growing bacteria for a science experiment. Shaina starts with 2 cells and expects to see the cells double every 3 days. Her bacteria’s growth can be modeled by S(x)=2(2)^x/3. Aaron’s bacteria culture starts out with 4 cells and is expected to double every 4 days. His bacteria’s growth can be modeled by A(x)=4(2)^x/4. After how many days should they expect to see the same number of cells in their cultures?