Hector keep close tabs on his bank account. his account had a balance of -$22.80. the next day, he made a deposit of $56.60. his account balance changed to $.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

How many ordered pairs of positive integers satisfy xy=32?

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.