URGENT! A scientist begins an experiment with 20.25 milliliters of a chemical. She adds 0.75 milliliter of water to the chemical every 10 minutes, starting at 1:30 P. M.

The scientist continues adding the 0.75 milliliters to the mixture until amount of chemical and water are EQUAL. At that point she uses 2/3 of the mixture for further experiments.

How many milliliters of the mixture are unused?

Find two rational expressions that have the difference of 2-n/n-4

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?