HELP WILL GIVE BRAINLIEST

I got 99.^2

Step-by-step explanation:

I broke the shape into little shapes. Two rectangles and one triangle

Area of 1 rectangle= 45^2

Area of 2 rectangle=27^2

Area of 1 Triangle=27^2

Add them up and you get 99^2.

Hope this worked!

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional