Multiples of 5 and 8 use LCM to simplify120/160

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

#12 find the value of x. #13 find the value of the variable.

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?