Answer:
Barb would save $10.93 in 2 months if she only got two month plan instead of two one month plans.
Step-by-step explanation:
First, you need to determine the amount that Barb will pay with the one month service plan in 2 months:
$39.95*2= $79.9
Now, you need to calculate the difference between both plans:
$79.9-$68.97=$10.93
According to this, the answer is that Barb would save $10.93 in 2 months if she only got two month plan instead of two one month plans.