Answer:
35x³-25x4y³/5x²y² = −5x6y5+35x3
So he started with 3/4 lb and ended up with 2/3 of that so 2/3 of 3/4
'of' can be roughly translated as multiply
so 2/3 times 3/4 =6/12=1/2 lb left
or you know that there are 3 out of 4 parts pound left so 2 out of 3 parts of nuts is = 2/4 or 1/2 lb
Multiply 9800 by . 2. Then multiply that answer by 15 to get the answer. hope that helps!