Answer :
The cost after rebates is $100.75 if additional memory for your computer is $109.99 with a $10.00 mail-in rebate, an envelope costs $0.35, and a "forever" postal stamp costs $0.41.
An envelope costs $0.35, and a "forever" postage stamp costs $0.41 while more computer Memory costs $109.99 with a $10.00 mail-in rebate.
We must calculate the price after applying all discounts and given envelopes.
The price may be determined as follows:
Cost = Additional memory - Mall rebate + Envelope costs + Postal stamp costs
Cost=109.99-10.00+0.35+0.41
=$100.75
Since an envelope costs $0.35, a "forever" postal stamp costs $0.41, and more computer RAM sells for $109.99 with a $10.00 mail-in rebate, the final cost after all rebates will be $100.75.
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