What are the solutions to this equation? 2x^2=-10x +12

a) x=-3
b) x=1
c)x=-6
d) x=6
e)x= 6
f)x=-2

Geometry. i need step by step explanation on how to do each problem.

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.