Jack ran a marathon in 2 hours and 17 minutes. He crossed the finish line at 10:33 a. m. What time did the race start?

8:16 am

Step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square