4to the power of negative n equals 32 then what is n

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Solve -.016x= -16. need solving this

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x