Respuesta :

12 + 15 + 45 + 1 23 = 196 = 316 ≅ 3.166667
Assuming you put this correctly and it's 3/4^3 not 3/(4^3); The answer would be 2.5*2+3/4^3 = 5 + 3/4^3 = 5.42. However, if it's the latter your answer would instead be 5.05.