Step-by-step explanation:
1) The area of rectangle is ( 30x²y + 20xy ) cm² and its breadth is 10xy cm .Find its length....
= Solution ,
Length ( L ) = ?
breadth ( b ) = 10xy cm
area ( a ) = ( 30x² + 20xy )
Now ,
area ( a ) = l × b
or, ( 30x²y + 20xy ) = L × 10xy cm



2) Subtract the quotient when 20x⁴y² is divided by 5x³y from the product of 2x and 3y.
= Solution,


The product of 3x and 4y = 6xy
= 6x - 4xy

hope it helped !!!!
What is the answer or this.
Answer:
The tree is thirty feet tall (30)
Step-by-step explanation:
So you divide 6 by 15 and you get .4
Then you multiply .4 by 75
And then you have 30
which the answer is 30
It takes 3600 seconds for one hour. It takes 14400 seconds for four hours.
Hope I helped!