Need help its due at 7 pm so take your time

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

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