Can someone help this person out please its due today it's my only hope ( also dont be rude or mean thanks^^)

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

Prove that 16^4-2^13-4^5 is divisible by 11.