What properties of equality are used in solving 3 + 2x = 4? check all of the boxes that apply.
the addition property of equality
the transitive property of equality
the multiplication property of equality
the substitution property of equality

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

For what value of (y) is 3^3/3^y =1/9