Your ANSWER is
4
I really hope this helps let me know if you need a step by step
Marissa would round 6,821 to 7,000 and 4,963 to 5,000. Then she would add 7,000 and 5,000 and get 12,000.
The exact answer would be 11,784.
8/15ths, because 1/3=5/15 and 1/5=3/15 therefore 5/15+3/15=8/15
-3v+24 would be your answer
