In an 8 team floor hockey, each team plays each of the other team twice. what is the total number of games played

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

Solve the system of equations. y= 2x y= x^2 - 15

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3