Answer:
18

Step-by-step explanation:
area of circle: 
A of circle G:
= 9
Maria's circle has double the area of circle G, so it has 2 * 9
= 18

Step-by-step explanation:
-2 - 7 = -9
0 - (-3) = 3
y = -9x + 3
Answer:
7000 - 24x = y(the amount he can sell the car for)
Step-by-step explanation:
Store pays ($3)
Store sells it for ($5.70)
The percent is always (100%) when there selling it.
markup= $3 ÷ $5.70 · 100% = 1.9