I think its A the first one
Answer:
7,3,5,1???
Step-by-step explanation:
Answer:
The area is multiplied by 4
Step-by-step explanation:
The area of a circle is directly proportional to its square radius so if the radius is increased by x, the area will be increased by x ^ 2
Answer:
1/2x+7
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
9+3=12