False. An integer can be either negative or positive.
Petra is 13 and her mother is 32. I used this equation:

if you solve for p, you get 13. 13 times 2 plus 6 equals 32. So her mother is 32.
The modal score would be 71. 71 appears the most in the list.
Answer:
Percentage of Taxes = 10.689 %
Step-by-step explanation:
Given that
Total earning of Anna is $442.50
The amount which is held with Taxes = $47.30
Now in terms of percentage
percentage of taxes from her total earning = 
So % taxes = ( 0.106892) × 100
∴ Taxes percentage = 10.689 %