The number of milliliters in 1 liter is

Among registered voters in a certain district, the ratio of male to female voters is 3:5. If the district
currently includes 2,400 registered voters, how many additional males must register to make the ratio 4:5,
assuming the number of female voters remains unchanged?

You need 4/5 cups of water for a recipe. You accidentally put 1/3 cups into the mixing bowl with the dry
ingredients. How much more water in cups do you need to add?

If the area of an equilateral triangle is x square meters and the perimeter is x meters, then what is the
length of one side of the triangle in meters?

Which of the following letters represents the vertex in the following picture?