Solve the system using elimination.
−2x + 6y = 18
−4x − 6y = 18

A. (1, 6)
B. (6, 1)
C. (1, −6)
D. (−6, 1)

What is the value of x? enter your answer in the box. (cm)

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books