Super duper urgent!
find the sum of the summation of 2 i minus 12, from i equals 7 to 16.

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Empty box + box + empty box fill in the box is equal to 30 how

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex