Explain how you can use grouping and multiplying in any order to make multiplying three numbers easier

Given the following statements, which is the best

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?

Find the zeros of each function. f(x) = x^2 + 5x - 6