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OfficeDepot has the following deals on Texas Instrument Graphing Calculators:
* Texas Instruments TI-83 Plus Graphing Calculator:
$90 – $20 coupon 42206472 – $25 rebate – $25 rebate = $20

* Texas Instruments TI-84 Plus Graphing Calculator:
$120 – $20 coupon 42206472 – $25 rebate – $25 rebate = $50

* Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink and Blaze Orange):
$125 – 15% coupon 42206472 – $25 rebate – $25 rebate = $55

* Texas Instruments Nspire Graphing Calculator:
$160 – $30 coupon 76902528 – $25 rebate – $25 rebate = $80
Final Price for this deal: ~$30 + Shipping