Answer:
No, she has more than one independent variable.
Step-by-step explanation:
Answer:
40 minutes
Step-by-step explanation:
Let c represent the number of minutes it would take colleen to finish the job when he is working alone. Hence, it can be represented by the equation:

Solving the quadratic equation to get c gives:
c = -12 and c = 40
Since the time cannot be negative, hence c = 40 minutes.
It would take colleen 40 minutes to clear the yard of leaves alone
Answer:
the answer is 7.2 10³
Step-by-step explanation:
7.2 10³
Answer is Mary because
8/8 is a whole
4/8 is a half
3/8 is less than 1/2