A mixture of 3% disinfectant solution is to be made from 8% and 2% disinfectant solutions. How much of each solution should be used if 36 gallons of 3% solution are needed? You need ___ gallons of 8% solution and___ gallons of 2% solution.

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

Three times the sum of a number and seven is negative thirty-six. what is the number?

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap