Has a beaker containing 40 litres of a 20% acid solution. How much pure acid should be added to increase it to a 50% concentration?

When lulu enlarged her drawing of a rabbit, the enlarged picture appeared to be distorted. which statement about the transformation applied to her drawing is true?

Which of the following three dimensional figures has a circle as it’s base

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?