Answer:

Step-by-step explanation:
We can apply the distributive property then combine like terms for a simpler equation.

Hope this helped!
Answer:
D
Step-by-step explanation:
literlay just count
Y-2x=-3.5
x-2y=-14
then multiply the first term by 2
2y-4x=-7
x-2y=-14
then sum them
-3x=-21
x=-7
y=3.5
The formula of combination is

We have

and


Hence, there are 1001 ways of arranging 10 records from 14 records