Which expression is equivalent to |x| > 9

a. x > - 9 and x < 9

b. x < -9 or m > 9

c. x > - 9 or x < 9

d. x < - 9 and x > 9

Np4=12np2 with clear explanation.

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?

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?