What number would have to be added to complete this square x^2 + 10x +?

What could explain what happened when the time was equal to 120 minutes

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.