Answer:
30.4 dollars
Explanation:
Total Cost of six books = 12.50 * 6
= 75
Total Cost of the remaining 4 books = 26.35 * 4
= 105.4
total cost of 10 books = 75 + 105.4
= 180.4
Difference in cost of the books and the money she has = 150 - 180.4
= - 30.4
Therefore she is short of 30.4 dollars