If you subtract 18 from my number and multiply the difference by -2, the result is -20. What is Saras number

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: