(a) Let u be the original price of the white dress = original price of the blue dress

White dress discount = 10% = 0.9u

Blue dress discount = 15% = 0.85u

So, 0.9u – 4.4 =  0.85u +2

0.05u = 6.4

u = 128

Hence original price of the white dress is $128.

(b) Money Alice has at first = 0.9(128)-4.4    or  0.85(128) + 2 

                                            = $110.80

Please click “Accept Answer” if the answer is correct.