What is 0.23 rounded to the nearest tenths

Which of the following are accepted without proof in a logical system? check all that apply.

For what values of x is x2 + 2x = 24 true?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas