Answer:
B: 4 and 5
Step-by-step explanation:
I'm not 100% sure but all of the other angles don't look congruent
Answer:
1. r=anything
2. d=6
3. b=4
Step-by-step explanation:
Answer:
-765
Step-by-step explanation:
-2-7 * 109
-2 - 763
-765
First you had to expanded form.


Finally you can also add by similar to elements.


Final answer: 
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
What's Ratinal? Do you mean rational? If so, you're right.