Answer: 
Step-by-step explanation:
Given
Sample space is 
There are 8 element in sample space which indicates the outcome of tossing a coin three times
Probability of obtaining at least one head



Answer:
9 feet
Step-by-step explanation:
3X3=9 feet therefore 3 yards is equal to 9 feet
Patterns allow someone to make educated guesses.
The answer is A because the perpendicular slope is the opposite reciprocal which would be positive x.