Answer: look at the picture i attached!
Answer:
The variable in that expression is x
Use the sequence formula and the answer will be 981,090.
Go to khanacademy.com and there's a lot of instructional tutorials that show you step by step tutorials
There's an infinite number of equivalent ratios for 27:15, these are the ones that just came to my mind:
27:15 = 54:30 (because 27 * 2 = 54 and 15 * 2 = 30)
27:15 = 9:5 (because 27 / 3 = 9 and 15 / 3 = 5)
27:15 = 135:75 (because 27 * 5 = 135 and 15 * 5 = 75)
