Aclass has 9 students who are to be assigned seating at random. what is the probability that the students will be arranged in order from shortest to tallest? (assume that no two students are the same height.)

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Answer this question only if you know the 30 points and

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.