The answer is 16 use pendas
Answer:
13
Step-by-step explanation:
HCF = Product of two numbers ÷ LCM of these numbers
HCF = 
= 13
Answer:
answer is y=-2x
Step-by-step explanation:
-2x because every time the dot decreases
N+n+2+n+4=54
3n+6=54
3n=48
n=16
16, 18, 20