Answer :
Mizrahi pays $62.74 and a new plan cost $48.50 for unlimited texts and an additional %5.99 for unlimited calls.
If Mizrahi switches plans, the total he need to pay in order to get unlimited text and calls is:
[tex]48.50+5.99=54.49[/tex]Now, to know how much money he saves, we can rest to the price she is currently paying the price of the new plan:
[tex]62.74-54.49=8.25[/tex]Mizrahi saves $8.25