A piggy bank has $6.95 and contains only nickels and dimes. If there are a total of 91 coins, how many nickels are there?​

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?

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.