All you have to do is find the square root of 144. 12 times 12 is 144.
Answer:
The answer would be r=8
Step-by-step explanation:
You would have to set the equation equal to zero. r-8=0. Now you need to get the -8 to the other side of the equal sign. So you would add 8 to both sides to cancel the 8 out on the left side and 8 to the zero on the other side to get your answer
Can u plz show the picture more clearable cause I only see one of the graphs