Brenda bought three times
more black fabric than red
fabric. She bought 72 inches
of red fabric. If fabric costs
$725 per yard, how much did
Brenda spend on fabric?

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.