f) 15 km³
g) 189 m³
Step-by-step explanation:
f) length = 5km
width = 1km
height = 3 km
Volume of a rectangular prism = length × width × height
Volume of a rectangular prism = 5km × 1km × 3km
Volume of a rectangular prism = 15 km³
g) l = 9m
w = 7m
h = 3m
Volume of a rectangular prism = 9m × 7m × 3m
Volume of a rectangular prism = 189 m³