Arhombus has diagonals measuring 12 units and 16 units. what is the perimeter of the rhombus?

Geometry paper. i don't know how to do the rest. questions 5. 8. 9. and 10.

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Ineed with number 6 , explain how to get 1978