15 Im sure its 15 I re calculated just to be sure
Answer:
The equation of a circle:

Step-by-step explanation:
The equation of a circle:
(where the center is known as
and the radius, known as
).
-Since you already have the center and the radius, use them for the equation of a circle:
Center: 
Radius: 

After you have the equation of a circle, simplify the radius by the exponent
:

So, you have found the equation of a circle.
1. To translate to the left, add to x.
The equation is: y = |x + 2|
2. To translate down, add to y.
The equation is: y + 2 = |x| OR y = |x| - 2 (subtract 2 from each side)
Hope this helps!
Sam was at the mall for about 4 hours 25 minutes
40 min = 40/60 hr = 2/3 hr
Distance = x km
t=distance/speed
x/200+x/120=2/3
multiply by 6oo
3x+5x=400
8x=400
x = 400/8=50km
The journey is for 50km
pls giive brainliest\