Answer: the system of equations that represents this situation are
12x + 6y = 180
x = 2y
Step-by-step explanation:
Let x represent the number of hardcover books that were sold in a day.
Let y represent the number of paperback books that were sold in a day.
The discount bookstore sells hardcover books for $12 and paperback books for $6. The total sales that day were $180. It means that
12x + 6y = 180
The number of hardcover books sold that day was twice the number of paperback books. It means that
x = 2y
Answer: 26.1
<u>Step-by-step explanation:</u>

Answer:
D)y=5x³
Answer:
30 books
Step-by-step explanation:
125%= 1.25
1.25 times 24= 30
Answer: 7.83
Step-by-step explanation: