Answer:

Step-by-step explanation:
parabola equation with vertex (0 , 0) and focus length |f| = 7
4*f*(x - h) = (y - k)²
4*7*(x-0)=(y-0)²
28x = y²

4 feet, divide the # of inches by twelve and it equals the feet.
Step-by-step explanation:
A = πr²
r = 6
π = 22/7
22/7 × 36 = ¯\_(ツ)_/¯
I believe it is the second one... I think = is for numbers only.
The first questions answer is 50.
The second questions answer is 480
The third is 90
The fourth answer is 180
Lastly the last answer is 180 again