Diego's goal is to walk more than 70,000 steps this week. The mean number of steps that Diego walked during the first 4 days of this week is 8,019.
a. Write an inequality that expresses the mean number of steps that Diego needs to walk during the last 3 days of this week to walk more than 70,000 steps. Remember to define any variables that you use.
b. If the mean number of steps Diego walks during the last 3 days of the week is 12,642 , will Diego reach his goal of walking more that 70,000 steps this week?