Respuesta :

10350000000  its long but think its right

Answer:

1.035 * 10^11

Step-by-step explanation:

That would be  7.14*10^10 + 3.21 * 10^10

= 10.35 * 10^10

Now convert to scientific form by dividing the first part by 10 and multiplying the exponential part by 10

= 1.035 * 10^11