Just explain and choose abc or d

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)