Find the surface area of this prism. Please help 20 points

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 graph represents f(x)=[x]+3. what is f(-2.2)?

Given that s is the centroid of triangle mno, find sq.