fill in the venn diagram that would represent this data. a study was made of 1000 rivers to determine that pollutants were in them. 177 rivers were clean, 101 were polluted only with crude oil, 439 rivers were polluted with phosphates. 72 rivers were polluted with sulphur compound and crude oil but not with phosphates. 288 rivers were polluted with phosphates but not crude oil. 463 rivers were polluted with sulphur compounds. 137 rivers were with only phosphates.​

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Find the domain and range of the following function f(x) = 51x - 21+ 4

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?