Answer:
80
Step-by-step explanation:
Use the equation 180-(70 +30)
Simplify what's in brackets first, then move to what's in the parenthesis
It's the first one lmk if you want an explanation
18 - 2,3,6,8
24 - 2,4,6,8,12
HCF = 8
I think it is 4 out of 5 but i dont know the number to the nearest thousanths
but i hope this helps
