Using the proportion given, there will be 57 catfish in the pond.
The proportion given to us is
5.7/20 = x/200
Cross multiply:
5.7*200 = 20*x
1140 = 20x
Divide both sides by 20:
1140/20 = 20x/20
57 = x
517284 books have been sold to date.
Step-by-step explanation:
Given,
Copies sold in first month = 41900
This represents 8.1% of copies sold to date.
Let,
x be the number of copies that have been sold to date.
8.1% of x = 41900

Dividing both sides by 0.081

Rounding off to nearest whole number
x = 517284
517284 books have been sold to date.
Keywords: percentage, division
Learn more about division at:
#LearnwithBrainly
Answer:
The first answer is 3, and the second answer is groups of 3 allow 4 rows of 9 students.
Step-by-step explanation:
Not sure I guessed on the question and got it right, just trying to help people out.
-3x^2-2x (+-)6=0
ax^2+bx+c
a=-3
b=-2
c= either positive or negative 6 (there is no plus or minus in your question.)
What are the answer choices? It might help.