The answer is $14.99: 24.99x0.6=14.994~14.99
1935 rounded to the nearest thousand = 2000....because it is closer to 2000 then to 1000.

Actually Welcome to the Concept of the areas.
Since we know that, radius = diameter /2
here, => d = 2r ,
hence we use the formula as,
A = πr^2 ,
here option d.) is correct.