The ages of undergraduate students in a state in a particular year approximately follows a normal distribution, with a mean age of 20.6 years and a standard deviation of 1.3 years. if the total number of undergraduate students in the state is 430,000, how many students are aged 19 years or more?

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

Which number produces an irrational number multiplied by 1/3