4k+6 is greater or equal to -14
4k is greater or equal to -20
k is greater or equal to -5 <-- answer
X is 12 and y is 15 because of 3,4,5 triangles
63/84 divided by 21/21
=3/4
or
63 divided by 84=0.75 which is the same thing as 3/4
Just multiply the base times height times width which would give you 800
