Please help me with this. ASAP

Anew fountain in the shape of a hexagon will have 6 sides of equal length. on a scale drawing, the coordinates of the vertices of the fountain are: (7.5,5), (11.5,2), (7.5,−1), (2.5,−1), (−1.5,2), and (2.5,5). how long is each side of the fountain?

What is the y intercept of f(x)=(1/2)^x?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?