Answer:
72
Step-by-step explanation:
for the rectangles you use the formula :
a=lw 3x6=18x2=36 + 4x6=24
and for the triangles you use:
a=1/2bh 3x4=12/2 + 3x4=12/2
then you add it all together
36+24+12=72
If the the expression can have addition it is fairly simple. For example: 19+.6 or (19+.1)-.4
Hey there!
You got the first part right where you added r to both sides. However, you need to make sure that you complete all actions on both sides, including canceling out parts of terms by division. The only thing you need to do is divide both sides by h instead of just the left. This will make your answer:

Hope this helped you out! :-)
Answer:
1/8
Step-by-step explanation:
this number falls in between range must be fraction form.