Sagot :
She bought 40.
142.39-2.79=139.6
139.6 divided by 3.49 equals 40
142.39-2.79=139.6
139.6 divided by 3.49 equals 40
To get the answer we have to subtract 142.39-2.79=139.6
Now we can divide 139.6 by 3.49
139.6:3.49=40 - its the answer
Now we can divide 139.6 by 3.49
139.6:3.49=40 - its the answer