The final would be
6X+9Y+14
How?
You combine similar numbers. You can't combine 5X with 2 but you can combine 5X with X
also just the letter X means it is a one.
Answer: 280.8
Step-by-step explanation:
Answer:
1.8.10=1.80000000000
7.2.10=7.2000000000
Step-by-step explanation:
The answer is 4
Since 3.3x 4 is 13.2 and plus 3.0 is 16.2
George sold:

and Veronica sold:

As expanding the scientific notation numbers, we see that
George sold eight hundred thousand
Veronica sold 4 million
How many time is 4 million of 8 hundred thousand?
We simply divide!

So,
Veronica's song was downloaded 5 times the numebr of that of George.
B is the right answer.