_____12) What is the standard form for this? 3,500,000,000
A. 3.5 x 109
B. 3.5 x 109
C. 3.5 x 107
D. 3.5 x 106
_____13) What is the exponent for this number? 34,000,000,000
A. 109
B. 1010
C. 1011
D.1012
