Pls help me write the equation

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

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.