Answer: 11621.1509596
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She has 24 friends.
<u><em>Explanation</em></u>
Suppose, the number of friends is 
She gave 3 pieces of gum each of her friends. So, the <u>total number of gums given to
numbers of friends</u> will be: 
She had total 77 pieces of gums and after giving to her friends, she has only 5 remaining. So, the equation will be......

So, she has total 24 friends.
Answer:
4a) 4 1/6
4b) 2
5a) 36.424
5b) 5.4
Step-by-step explanation:
When multiplying or dividing by mixed numbers, convert them into improper and just do it from left to right for each numerator and denominator
8.66, you divide 12.99 into 3 and then multiply the result which is 4.33 by 2
The velocity is 4. You didn’t say what you needed to find but I’m pretty sure it’s that