How many total orbitals are within the 3s3p and 3d sub-levels of the third energy level?

In the third energy level (n=3), the sub-levels include 3s, 3p, and 3d. The 3s sub-level has 1 orbital, the 3p sub-level has 3 orbitals, and the 3d sub-level has 5 orbitals. Therefore, the total number of orbitals in the 3s, 3p, and 3d sub-levels combined is 1 + 3 + 5 = 9 orbitals.