Which statement describes an advantage to using tables

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0