Answer:
Stop cheating :) jk The answer is b Angie
Step-by-step explanation:
Answer:
21x + 35y
Step-by-step explanation:
you need to use the distributive property
7 times 3x = 21x
7 times 5y = 35y
Answer:
x = 54
Step-by-step explanation:
Since both triangles are similar, therefore,



Cross multiply


Divide both sides by 7
x = 54