Answer:
11.5
Step-by-step explanation:
Frank paid a total of 24.2 for the 2 CDs, so, for each CD, he paid the total value divided by two:
Price of each CD = 24.2 / 2 = 12.1
Each CD had a tax of 0.6, so, to calculate the price of each CD before tax, we just subtract the price of each CD by the value of the tax for each CD:
Price of each CD before tax = 12.1 - 0.6 = 11.5
The price of each CD before tax is 11.5
it is an increase of 400%
Vertex: (1, 6)
Axis of symmetry: x = 1
Answer:3
15-3=12÷4=3
50
