Determune whether the quadrilateral is a prallelogram K(2,7), L(6,12), M(13,13), N(9,8) (slope formula)

These question are hard can you me with answers

Acircle has a circumference of 28.36 units what is the diameter of the circle

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points