Answer: 7 years
Explanation:
The rule of 70 is used to find the approximate doubling time in years
The rule of 70 uses the equation 70 divided by the growth rate per year
so 70/10 = 7
this population would double in 7 years
also i’m assuming this is APHG so if you live in the U.S. good luck on ur ap exam next thursday :)
hope this helps :)