1. 105,000,000 written in scientific notation would be:
   
   

A1.05 x 108

B10.5 x 108

C1.05 x 10-8

D10.5 x 107

1. 45,000 in scientific notation would be:
   
   

A4.5 x 104

B4.5 x 10-4

C45 x 103

D45 x 10-3

1. 7,600,000 in scientific notation would be:
   
   

A7.6 x 108

B7.6 x 10-6

C7.6 x 106

D76 x 105

1. 0.000000057 in scientific notation would be:
   
   

A0.57 x 10-7

B5.7 x 10-8

C5.7 x 108

D57 x 109

1. 0.000036 in scientific notation would be:
   
   

A3.6 x 10-5

B36 x 10-6

C3.6 x 105

D36 x 106