To find out how much Barb would save by choosing the two-month plan instead of two single-month plans, we need to calculate the total cost of two individual one-month plans and then compare that to the cost of the two-month plan.
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Cost of two one-month plans: \[ 2 \times 38.95 = 77.90 \]
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Cost of the two-month plan: \[ 68.97 \]
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Savings: \[ 77.90 - 68.97 = 8.93 \]
So, Barb would save $8.93 by choosing the two-month plan instead of paying for two one-month plans.