There are 8 teams playing in the tournament. each team is scheduled to play every other team once. how many games will be played during the tournament? a. 15 b. 21 c. 28 d. 36

C. 28

Step-by-step explanation:

There is an easy trick to figure this out, you have to add every number below the number of teams given in sequence.

For example: there are 8 teams so you would add 7+6+5+4+3+2+1

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5