78,66,64,72,81,77,65,66. what's the mean?

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?