Answer and explanation:
Please find attached answer and explanation
An=-31+(n-1)-11 find the eleventh term
a11 = -31 + (-11) (11-1)
a11 = -31 +-11(10)
a11 =-31 +-110
a11 = -142
486/900 = .54 = 54%. .......
540 (100 centimeters = 1 meter, so 54 x 100 = 540.)