Can someone plzzz me with number 7 plzz show work plzzz

y=100

x=9

Step-by-step explanation:

I'm not positive but x=9.

5x+10=55 subtract 10 from both sides

5x=45 then divide by 5

x=9

angles M and K should be congruent so Y should =100 also.

heres where I'm unsure:

with x being 9 the (x+10)° would be 19 meaning angle L would also be 19. which I don't think is right.

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !