One farmer comply with a 40 acre field and 38 hours. Another farmer comply with the same field and 43 hours. How long will it take them to plow the field together? answer in hours, minutes and seconds

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x