Suppose that the pairwise comparison method is used to determine the winner in an election. If there are 3 candidates, how many comparisons must be made?

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?

Simplify this expression. 8x 16(x + y)

What graph represents an even function