The answer is 29.
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Answer: cost of 1 book= 7.5
cost of 6 books= 45
Step-by-step explanation:
The relationship between n and 4 is
n>4
We have,
7

> 7
The number 7 which is in multiplication on left hand side of the expression, will come in denominator on right hand side of the expression.
⇒

>

⇒

> 1
Again 4 in denominator from left hand side will come in numerator on right hand side
⇒ n > 4
Answer:
y = x - 4
Step-by-step explanation: