Find the circumference of the circle.Use 3.14 for pi
14 ft

Step-by-step explanation:

radius (r) = 14ft

circumference = 2π×r

= 2 × 3.12 × 14

= 87.92ft

Amelia will invest $2800 and $6200 in the two accounts.

Step-by-step explanation:

Let us assume that Amelia has invested $x and $y in the two accounts respectively.

So, x + y = 9000 ...... (1)

Again the total interest is $580 for investing $x in 3% annual interest and $y in 8% annual interest.

Hence,

⇒ 3x + 8y = 58000 ..... (2)

Now, solving equations (1) and (2) we get,

5y = 58000 - ( 9000 × 3 )  

⇒ 5y = 31000

⇒ y = 6200

Hence, from equation (1) , x = 9000 - 6200 = 2800

Therefore, Amelia will invest $2800 and $6200 in the two accounts. (Answer)