Macy wants to buy a skateboard for $42. she has $95 in her account. she spent $12.99 to buy stationary. she also wants to buy some ice cream bars for $3.07 each. what is the maximum number of ice cream bars, n, that macy can buy so that she has enough money left to buy the skateboard?
n ≤ 13
n ≥ 13
n ≤ 16
n ≥ 16

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.