B because 18 isn’t much bigger than 15. I guessed so I am more than likely wrong
The solution of the system of equation is (-8, -2).
Given that,
Use substitution to solve the linear system of equations.
y = 4x
3x + 5y = -46
We have to determine,
Solve the equation using the substitution method.
According to the question,
The given system of equation is,

Substitute y = 4x in the equation 2,

Substitute the value of x in equation 1,

Hence, The solution of the system of equation is (-8, -2).
For more details refer to the link given below.
brainly.com/question/3144348
There are 15 biography books and there are 48 books in total so the ratio is 15:48
Answer:
it is 5.8
Step-by-step explanation: