Write each number in scientific notation

Write each number in scientific notation.

a. 1,340,000
b. 0.00000609
c. −3
d. 0.9×105
e. 379×105
f. 602,000,000,000,000,000,000,000,
g. (1.3×105)(6×107)
h. (2.2×102)(5×104)