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Y=(3/4)^x represents exponential decay since 3/4 is less than one, so y will become increasing smaller as the exponent increases
Answer: C. 9x+6 yd
Step-by-step explanation:
Given: The length of Jin's house= 
The area of Jin's backyard=
By middle splitting method, The area of Jin's backyard=
To find the width of the backyard, divide the area by the length, we get
Width
According to the question, only three sides need to fence

1) Let, the number of movies = m
It would be: 40 + 2n = 100
2) solving the equation:
40 + 2n = 100
2n = 100 - 40
n = 60/2
n = 30
In short, Your Answer would be 30
Hope this helps!