8th grade Math

posted by Mika

I'm actually in 7th grade, but I'm doing 8th grade pre-algebra, but anyway, here:
I'm supposed to simplify these four problems and I don't really understand how:

28s (15 power)
____
42s (12 power)



4m+(n[7th power]m)


63m(5 power)n(6 power)
______________________
27mn


3a·4a(4 power)
______________
28a(2 power)



Thanks!

  1. jasmine

    i need help with this home work i need to write an algebraic expression for each word. 1.5 less than the prouduct of 3 and p

  2. Charlie

    3p - 1.5

  3. jessica

    how do you convert .833333333333....... into a fraction

  4. bob

    what is more dense 14cm3 or 8cm3

  5. Anonymous

    five times the sum of a number and 2 is 25 find the number

  6. Anonymous

    how many tiles 15 cm square will be needed to cover a floor 5.8 m by 6.90m?

  7. Dustin

    To anonymous 5(x+2) = 35 is the equation. Pretty easy to solve from there

  8. rovika grg

    thank u very much

  9. HomoNovus

    Holy cow this question has a lot of answers!

  10. Mrs. Smith

    Make .833333333333 as a fraction

  11. Ravi

    Estimate the square root of 72 how to find it

  12. Tissy

    To Jessica and Mrs Smith
    5/6=.833333333
    100x=83.333333333-
    10x= 8.333333333
    --------------------------------
    90x=75
    x=75/90=5/6.

  13. Gina-helen

    in scientific notation.
    (2.74×10^7)+(5.6×10^7=

  14. sanchit sahu

    The area of trapezium is 180cm and its hight is 9cm. If one of the parallel side ia langer then the other by 6cm, find the two parallel side.

  15. sanchit sahu

    The area of trapezium is 180cm and its hight is 9cm. If one of the parallel side ia langer then the other by 6cm, find the two parallel side.

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