Anna, Belinda and Clare bought a vase and shared the cost equally among themselves. Clare did not bring her money, so Anna and Belinda paid for the vase first. Anna paid 0.25 more than what Belinda had paid. The following day, Clare paid her share to both Anna and Belinda.
a) Clare paid Belinda $6.55. How much did Clare pay Anna?
b) Clare's brother bought a similar vase at the same shop during a sale and was given a discount of 20% of the price that Clare and her friends paid for. How much did Clare's brother pay for the Vase?
A  0.25 = 1/4
B  Highlighted - Clare's share
1 u --> $6.55
2 u --> 2 x 6.55 = $13.10
a) It was $13.10.
100% : 9 u --> 9 x 6.55 = $58.95
80% --> 90/100 x 58.95 = $47.16
b) It was $47.16.