5. there are 28 right-handed students in a class of 31. what is the probability that a student chosen at random will be left-handed?

Autility company burns coal to generate electricity. the cost c(p), (in dollars) of removing p percent of the some stack pollutants is given by c(p)= 85000p/100-p a) find the cost to remove 30% of the pollutant b) find where the function is undefined

State if the two triangles are congruent. if they are, state how you know?

What is the absolute value of the complex number -4-sqrt2i