X = 5(84/100) + 4(10/100) +3(4/100) + 2(1/100) + 1(1/10)

the correct answer is,

if you want me to solve without the parentheses then the answer would be,

step-by-step explanation:

it's is b

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.