Answer:
sorry , but where is the question?
It be 81.
You have to take half of -18 which is -9, and square that, which is 81.
...... uhhh
ok
Step-by-step explanation:
the departure time is 2:24 pm
Olivia is 24 years old
step by step
because Olivia is 20 years old and Mike is 4 years older than her so Olivia is 24 years old