Answer:
C and E
Step-by-step explanation:
Answer:
Fred is 28 yrs old. Nathalie is 12yrs old
Step-by-step explanation:
Let Nathalie's age be x
Let Fred's age be a
x+a=40 yrs•••••1
4x+a=76yrs•••••2
a=40-x
Substitute a for 40-x in equation (2)
4x+40-x=76
3x=76-40
3x=36
x=12
a=40-12
a=28
2x+18+1-1 works if that's all you want
Is C
|-9|+|-2|
Because there both negative and if it isn’t I’m sorry
