Answer: 
Step-by-step explanation:
Given: Fraction of goal raised on first day = 
Fraction of goal raised after second day = 
Now , Fraction of goal raised on second day = Fraction of goal raised after second day - Fraction of goal raised on first day

Required fraction =
Answer:
Algebra book weighs 24 oz
Grammar book weighs 15 oz
Step-by-step explanation:
algebra = x and grammar = y
x = 2y-6
5x = 8y
5(2y-6) = 8y
10y - 30 = 8y
2y - 30 = 0
2y = 30
y = 15
x = 2(15)-6
x = 30-6
x = 24