Nis an integer s=1/2 n(n+1) prove that 8s + 1 is an odd square number

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?