Valid
Invalid
The population of Texas doubled from 1950 to 1980.
Incorrect
Correct!
The population of Texas more than doubled from 1970 to 2010.
Correct!
Incorrect
Since 1980, the rate of increase in the population of Texas has been getting larger.
Correct!
Incorrect
The population of Texas more than tripled from 1950 to 2010.
Correct!
Incorrect