Can someone help me on thisi please

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

How many grams must be adde to 970g to make 1 and a half kg

Iwill give you ! what is the measure of ∠v ?