Math

What is the sum of 5/6 + 2/3? My answer is 1 1/2.
Cody has 6 1/2 boxes of candy to share at a picnic. If he gives each person 1/3 of a box, how many people can receive candy? My answer is 19.
Which of these are not rational? a.3 squared. b.1/5 c.9 squared d.0.25 My answer is 3 squared.
Which expression is equivalent to 4x4x4x4x4x4x4x4? My answer is 4 to the 8th power.
Callie has 2/3 of a pound of loose tea leaves. if she wants to keep one half of the tea at home and the other half at works, what fraction of a pound will she have at work. My answer is 1/6.
What is 7 - 5/7? My answer is 2/7.
Which expression is equivalent to (-7) to the 5th power? My answer is -7x-7x-7x-7x-7.

Are these the right answers?

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  1. I will number your problems

    1. ok
    2. you need 6.5 ÷ 1/3 = 19.5
    I would have expected a whole number, since it deals with people.
    So 19 would receive a full 1/3 of a box, and the 20th person would get less than 1/3 of a box

    3.
    3^2 = 9 , which is rational
    1/5 is rational
    9^2 = 81 which is rational
    .25 = 25/100 which is rational
    all are rational

    4. good
    5. so at work she has (1/2)(2/3) = 1/3
    6. good
    7. ok, but I would write it as (-7)(-7)(-7)(-7)(-7)

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