At the bottom of the mountain the temperature was 23 f at the top of the temperature was 40 below the temperature of the base what was the temperature at the top

Which number produces a rationale number when multiplied by 1/5

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is