Answer:
6.75
Step-by-step explanation:
Find the relationship between the trapezoids. You can see that the top of trapezoid ABFE is 3 units and the top of EFCD is 4.5 units. 3 * 1.5 = 4.5, so t the sides of trapezoid EFCD are 1.5 times more than the sides of ABFE.
Now, you know the bottom of ABFE is 4.5, so the bottom of EFCD is 1.5 times longer because they are proportional, so you can do 4.5 * 1.5 = 6.75 units.
23 is the answer 322 divided by 14 is 23
(21x-3x)+9
Answer is 18x+9
hope i helped if did plz mark as brainliest^-^
