Respuesta :

3+9+9+7+7=36
Good night hope thid helps
using conversion
 
let km be the base unit

9 hm = 0.9km
9 dm = 0.0009 km
7 dam = 0.07km

adding all of the values

3 + 0.9 + 0.00009 + 7 + 0.07 = 10.97009