Answer:
By getting head's 12 times
Step-by-step explanation:
If you're solving for g then move all terms to the left side and set equal to zero. Then set each factor equal to zero.
And your answer becomes 
If you're solving for r then then move all terms to the left side and set equal to zero. Then set each factor equal to zero and your answer is 
Answer:
B). 32
Step-by-step explanation:
Answer is 9
Step by step explanation
As CB is radius CB=3, CA=3+7=10
X^2=(7+3)^2-3^2=100-9=81
X=9
Answer:
Albert invested 21,000 and John invested 49,000 :)