Alex and Nick collect baseball cards. Alex has three more than twice as many cards as Nick. Together they have 27 cards. How many cards does Alex have?

How to determine whether two known pairs of points are on the same line.

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll