Answer:
3
Step-by-step explanation:
It's given that ΔDEF ∼ΔXYZ . So the corresponding sides of both triangles will be proportional to each other.

DE = 4 ; XY = 4(n + 1) ; EF = 5 ; YZ = 7n - 1
Putting all these values gives ,







Answer:
A.
Step-by-step explanation:
The last one is the correct answer
Answer:
n<-9
p (put the symbol already there here) -7
Step-by-step explanation:
Hope this helps!!