Choose all the ratios equivalent to 2:4 answers:1/2 2/6 3/5 4/8 6/12 8/20

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?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)