After understanding the problem, formulate equations to determine the unknown. Let x be the price of one book. Equating Alana&Petra's expense with Angus' would be
5x + 4x +5 = 19x - 10
The 5 in the left side is needed because Angus' expense is $5 more. Also, the 10 on the right side represents the $10 discount. Solving the equation,
19x = 9x = 5+10
10x = 15
x = $1.5
Therefore, the book costs $1.5.
Answer:
A.Domain:{x\x is a real number }
Range:{y\y>5}
Asymptote :y=5
Step-by-step explanation:
We are given that a function

We have to find the domain, range and asymptote of h(x).
It is exponential function therefore, it is defined for all values of x.
Hence, domain of h(x)={x| x is a real number}
Substitute x=0 then we get

(a^0=1)
Hence, range of h(x)={y|y>5}
For exponential function,
Horizontal asymptote:
when 
Apply limit 



Hence, the horizontal asymptote y=5.
Answer:
$38.48
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Answer:
The total charge before applying sales tax
Step-by-step explanation: