Answer:
2e3rfe43rdefde
Step-by-step explanation:
Let Sydney's age be x
Christine's age is 2x
Sum of their age is 54
x + 2x = 54
3x = 54
x = 18
Sydney is 18 years old.
Answer:
16
Step-by-step explanation:
Answer:
nine divided by 2 plus negative eight
Step-by-step explanation:
9/2=4.5
4.5+(-8)= -3.5