Answer:
56.8 m²
Step-by-step explanation:
This shape is clearly a trapezium / trapezoid. So :
Area of a trapezium is given by the formula :

Substitute values given in diagram :
a = 4.2
b = 10
h = 8

7.1 × 8 = 56.8
Units will be m² as this is area
Giving us our final answer of 56.8 m²
Given:
The length of a string in yards is a function f(n) of the length n in inches
To find:
The function rule for the given situation.
Solution:
We know that,
12 inches = 1 yard
1 inch =
yard
n inches =
yards
It is given that the length of a string in yards is a function f(n) of the length n in inches. So,

Therefore, the required function for the given situation is
.