Which equation represents the sequence of -4,-1,2,5,8

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

interest rate - 12.000%  

final payment - $355.40

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu