# #7 - Exponents

### Sample Question:

7. In scientific notation, $$20,000 + 3,400,000 =$$ ?

A. $$3.42 \times 10^{6}$$

B. $$3.60 \times 10^{6}$$

C. $$3.42 \times 10^{7}$$

D. $$3.60 \times 10^{7}$$

E. $$3.60 \times 10^{12}$$