What is the precision and accuracy for 4.01seconds, 40 seconds, and 420.1 seconds

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2