Can someone please clarify. Answer + explanation please. What is the perimeter of the regular heptagon below?

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6