A different salad dressing uses a combined total of 2.5 cups of olive oil and vinegar per batch. Consider how many cups of this salad dressing are in 412 batches. Is 8 cups in 412 batches a reasonable answer? Explain how to determine the number of decimal digits in the answer without solving the problem.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.