Answer:
The result is 8.75 x10^8
Step-by-step explanation:
When you multiply numbers in scientific notation, you do the following:
Multiply the base numbers normally:
2.5* 3.5 = 8.75
The exponents with base 10 are added and the base stays the same in the result:
10^10x10^-2= 10^(10+(-2))=10^8.
The answer is the multiplicaton of both 8.75*10^8.
