In a round-robin tournament with n teams, the number of games that must be played is (n^2-n) / 2. How many teams are in a round-robin tournament in which 55 games are played?

What is 23+90-12+13x80

Ben, Ray and Lee ran laps around the school track Ben ran two times as many laps as Ray. Lee ran three laps which is one half of the number of laps at Lee ran how many laps did Ben run

Mia wants to construct a triangle with angles measuring 51*, 102*and 37*. how many different triangles can she construct?

Kasey creates comedy sketch videos and posts them on a popular video website

Solve for x. 25x-6=24+5x

Round 76,902 to the nearest one thousand

Makayla already has $45 dollars in her savings account. If she puts $15 per week in her account, how many weeks can she save to have at least $120 in her account? Select all that apply: A) 15 B) 45 C 60 D) 61 E) 65 F) 75

32 cans of coke cost a total of $8.96. what is the cost per can? let c represent the cost for one can of coke

A fluid moves through a tube of length 1 meter and radius r=0.002±0.00015 r=0.002±0.00015 meters under a pressure p=3⋅10 5 ±2000 p=3⋅105±2000 pascals, at a rate v=0.5⋅10 - 9 v=0.5⋅10-9 m 3 m3 per unit time.

Which statement about the Golden Age of Islam is a fact rather than an opinion? A. Islamic art was more abstract than Greek art. B. Muslims were the best early mathematicians. C. Islamic society preserved Greek and Roman culture. D.