2) Tina has 2 red marbles and 5 blue marbles.
Red marbles
Blue marbles
The ratio of the number of blue marbles to the number of red marbles is
Number of blue marbles
Number of red marbles
of the number of red marbles.
The number of blue marbles is _
The ratio of the number of red marbles to the total number of marbles is
:
Number of red marbles
Total number of marbles
of the total number of marbles.
The number of red marbles is​