Using partial products is rounding numbers to get an estimate. using regrouping is multiplying numbers to find an exact product. they are similar because in both strategies you multiply 2 find a product.
Hopefully this helps!!
Answer:
So Price after discount would be 17.5 on February 1st
Step-by-step explanation:
Given:
Original Cost =57.75
Off Price = 70%
To Find:
Price after discount = ?
Solution:
We have to find the price after discount which is given by the formula
Price after Discount = Original Cost - Discount Price
We have to find the value of discount price
Discount Price = off Price * Original Cost
Putting in the values
Discount Price = 70 % * 57.75
it becomes
Discount Price 
It becomes
= 40.25
Now
Price after Discount = Original Cost - Discount Price
Putting in the values
it becomes
Price after Discount = 57.75-40.25
= 17.5
So Price after discount would be 17.5 on February 1st
5/6, five sixths is the answer
Let width of rectangle be "x"
L= 3x W=x
if width is diminished by 1 that means new width = (x-1)
similarly the new length would be (3x+3)
hence (x-1)*(3x+3)=72
(3x^2)-3=72
3x^2=75
x^2=25
x= +/- 5
reject -5 as you cant have negative length
hence x=5
so original dimensions of rectangle is
L= 15m W=5m