Respuesta :

let n = the amount natasha gets
len k = the amount karen gets
karen / natasha = k/n = 2 / 5
n = k +5 ksubstitute 210
2n = ...2(k + 210) = 5k
3k = 420.


k = 14
n = 35

[140 / 350 = 2 / 5 ]

n

the sum is: $490