On April 1st, a business owner made a deposit of 16,400 to open a savings account paying 3 1/2% compounded daily. A withdrawl of 4500 was made 24 days later and another withdrawal of 940 was made 16 days before July 1 find the interest earned through July 1 and the account balance on that date

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.