Choose the correct simplification of (5x3 − 5x − 8) + (2x3 + 4x + 2).

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

How does reflecting or rotating a figure change the interior angles of the figure?