Answer:
(d) 519
Step-by-step explanation:
You want the ratio of (7.785×10^10) to (1.5×10^8) expressed in standard form.
Since you want the result in standard form, it can work well to make the numerator and denominator powers of ten be the same.
[tex]\dfrac{7.785\times10^{10}}{1.5\times10^8}=\dfrac{7785\times10^7}{15\times10^7}=\dfrac{7785}{15}=\boxed{519}[/tex]
