Answer:

Step-by-step explanation:
Given:
The given equation is.

Find the some of cube.
Solution:


----------(1)
The sum of the cube formula is given below.
-----------(2)
By comparing equation 1 and equation 2

substitute a and b value in equation 2



Therefore the sum of the cube 
First convert 2kg to grams which would be 2000g.
Maximum number of books=2000g/200g=10
The maximum number of books she can send is 10.
Answer:
The orginal price was $33.09.
Step-by-step explanation:
You take 30% and move the decimal two places to the left, which gives you .3
Then mutiply .3 to $25.45. This gives you $7.64.
Add $7.64 to discounted price ($25.45) and you get $33.09.
-105
Multiply first, then subtract, then add.