Answer:
1.28 km/week
Step-by-step explanation:
You want to know the rate represented by construction of 8.96 km of road in 7 weeks.
The rate of construction in km per week is found by dividing the number of km of road by the number of weeks.
(8.96 km)/(7 wk) = (8.96/7) km/wk = 1.28 km/wk
The crew built the road at the rate of 1.28 km per week.