The difference in their offers in terms of dollars today is $3,773.59.
The Present value of costs is a way of calculating the present worth of an investment which is expected to produce a particular amount in future.
Present value of costs of supplier one = $100,000 + 10*$10,000/(1.06)
= $100,000 + $94.339.6226
= $194,339.62
Present value of costs of supplier two = 21*$10,000/(1.06) = $198,113.21
Difference in the offer in terms of dollar:
= $198,113.21 - $194,339.62
= $3,773.59.
Therefore, the difference in their offers in terms of dollars today is $3,773.59.
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