Answer:
20
400 is 20 square= 20*20
so 20 students in each row
Answer:
B. Phenotype
Step-by-step explanation:
The interaction between the genetic factors and environmental stimulus is what results in the disease phenotype. There may be significant public health benefits in using gene by environment interactions to prevent or cure disease.
Answer:
The standard form of the given expression is 
Step-by-step explanation:
Here, the given expression is 
Now, the Standard Form of the equation is ax + by + c = 0
Solving this, we get:

⇒
or, 
⇒
Hence, the standard form of the given expression is 
Answer:
need more info bud
Step-by-step explanation:
The value of the expression will be equal to 55.
<h3>What is an expression?</h3>
The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that 6 is added to the product of 7 and a number 7. The expression will be written as,
E = 7 x 7 + 6
E = 49 + 6
E = 55
Therefore, the value of the expression will be equal to 55.
To know more about an expression follow
brainly.com/question/11847301
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