8. A car traveled 1027.88 km from Harrisburg, PA to Chicago, IL in 11.75 hours. What was the average speed of the car?
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For what values of x is x2 + 2x = 24 true?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?