Answer:
n=-N/5+9/5
Step-by-step explanation:
it takes 3 years.formula interest =PRT/100 so its 252 =1200 times 7 times T all over 100 then multiply by 100 both sides to get 25200=8400T devide by 8400 both sides to get 3

Explanation:
Area is pi×r^2 and you times it by the fraction of the circle you have as its not a full circle.
The answer is d)3 because each number gets multiplied by 3 to qual the next number