2. Summer Job - Four friends - LaTisha, Zack, Steve, and Michelle - are working in summer jobs. The jobs they found include food server, lifeguard, construction worker,
and checker at a grocery store. Determine who is working which job by using the clues
below.
- The person doing the food-serving job really likes his work.
- Zack and the lifeguard have known each other for years.
- Both Michelle and the lifeguard are outside most of the time, and the other two
are inside most of the time.
La Tisha and the person working construction met on their job last summer.
Neither Zack nor the food server worked last summer

The equation respenting the left table is

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

If p(x) is the total value of the production when there are x workers in a plant, then the average productivity of the workforce at the plant is a(x) = p(x) x . (a) find a'(x). a'(x) = xp'(x) − p(x) x a'(x) = xp'(x) − p(x) x2 a'(x) = p'(x) − p(x) x a'(x) = xp'(x) − p'(x) x2 a'(x) = p'(x) − xp(x) x2 why does the company want to hire more workers if a'(x) > 0? a'(x) > 0 ⇒ a(x) is ; that is, the average productivity as the size of the workforce increases. (b) if p'(x) is greater than the average productivity, which of the following must be true? p'(x) − xp(x) > 0 p'(x) − xp(x) < 0 xp'(x) − p'(x) > 0 xp'(x) − p(x) < 0 xp'(x) − p(x) > 0