Kalinda is 68 point 7 inches tall and wants to know how many inches taller she is than Terrence. If t represents Terrence’s height in inches, which expression can she use to find the answer?

To find how many inches taller Kalinda is, subtract Terrence’s height from Kalinda’s height. Since Kalinda is 68.7 inches tall and Terrence is t inches tall, the expression is 68.7 − t. Choice A gives this difference.

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