Answer:
c
Step-by-step explanation:
Use desmos!!! It’ll help and show you a graph!!
4 2/7 equals 30/7
30/7 divided by 9 equals 10/21
So the crew built 10/21 of a km everyday
D.) 2cm, 12cm, 16cm
'cause the sum of two small sides must be greater than that of longest side.
Hope this helps!
