Answer:
0
Step-by-step explanation:
2a+6=6
-6=-6
2a=0
2 2
a=0
The handshake problem!
Each of the five will play against 4 others, but since A vs B can be considered the same game as B vs A, so there are 5*4/2=10 matches.
I got 3x^2 + 12x + 4. I recommend you verify my answer, so you have to combine like terms in the first expression then add all the expressions.
If you add up all of the money he made and divide it by the amount he made via tips, you will see that the percent tip he received was 16%
I assumed you meant red instead of wet.
To calculate this, multiply 28% (which is the same as .28) times 300.
300 x .28 = 84
