Which graph can be used to find the solution(s) to x^2-4x+4=2x+1+x^2

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?

Which compound inequality could be represented by the graph?

What is the lcm of 16 and 40 ? 24 and 40 ?