A bag contains 12 blue blue marbles and 8 red marbles what is the ratio of the blue marbles to red marbles

12:8 or 12 to 8

Explanation:

The ratio of blue marbles to red marbles is 12 to 8

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.