Answer:
x=10.5
Step-by-step explanation:

The answer is 9
One square is equal to one. for the rest just substitute the x and y for the given values
Answer:
B. the second one
Step-by-step explanation:
Substituting 1000 for A, we have 1200R+700,000=1,000,000. Subtracting 700,000 from both sides, we have 1200R=300,000. Dividing by 1200, we see that R=250.