What is the advantage of multiply both sides of the equation by the least common multiple of the denominators in the first step ?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Which statement is true? n is a point of tangency on circle p. pt is a secant of circle p. is a secant of circle p. vu is a tangent of circle p.