Answer:
10/27
Step-by-step explanation:
5/6 * 4/9 = 20/ 54 = 10/27
we have M is durectly porpotional to r^2
so M=(k)r^2
and when r=2, m=14
so 14=(k)(2)^2
k=14/4 =7/2
so when r=12
m= (7/2)(12)^2 =(7/2)(144) = 504
x = -10
x = 5
3 feet wide
21/7= 3
