Answer:
a) Average age of girls is also 151.
b) 
Step-by-step explanation:
From the question we are told that:
Average height of the boys at age 
Average height of the boys at age 
a)
Since
The average height of all the children was 151 cm.
This implies that The average height of all children is 151
Therefore
Average age of girls is also 151.
b)
Assuming all factors being equal
Height of 10 year old boy



Therefore my Guess is

please give more information to the question
Answer:
x=1/3y - 2
Step-by-step explanation:
Isn't that Roman Numerals? But anyways,
L = 50
X = 10
X = 10
IV = 4.
So, 50 + 10 + 10 + 4 = 74.
The answer to your question is 74.
The area of the shaded part is 52 sq. inches. The correct option is b. 52 sq. inches
<h3>Calculating Area</h3>
From the question, we are to determine the area of the shaded part
In the given diagram, the shaded part is a rectangle
Area of a rectangle = Length × Width
Length of the shaded part = 18 inches - 4 inches - 1 inch = 13 inches
Width of the shaded part = 6 inches - 2inches = 4 inches
Then,
Area of the shaded part = 13 inches × 4 inches
Area of the shaded part = 52 sq. inches
Hence, the area of the shaded part is 52 sq. inches. The correct option is b. 52 sq. inches
Learn more on Calculating area here: brainly.com/question/12529348
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