Find the absolute value.
|-89= 0

please help thank you

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

What is the number 321,000,000 in scientific notation? also what is the number? ?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1