What is 1700000000 in scientific notation

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?