Why was the twenty sixth amedment passed?

What is the probabilty of twins? If you are born in 1932 how old were you in 2009? Is 124 divisible by 2? How many miles are in 13000 meters? Number that describes a certain event will occur? What is positive property in math? Do all numbers have a multipicative inverse? What does standard deviation prove about data? What is six o'clock in twenty four hour time? What is the incident angle of a beam of light if the beam of light is reflected at an angle of 15 degrees from the normal? What is the reciprocal of 7 over 8? What is all the common factors of 51 and 111? Solution of Black-Scholes equation? How much water is in 100 feet 1.75 inch hose? What does a trend show on a graph? What is 0.685 rounded to the nearest tenth? How many 1916 d dimes did they make? How successful are cone biopsies? How many days are there between your periods? What is the gcd of 315 and 360?