8th grade Math
I'm actually in 7th grade, but I'm doing 8th grade prealgebra, 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!

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
posted by jasmine

3p  1.5
posted by Charlie

how do you convert .833333333333....... into a fraction
posted by jessica

what is more dense 14cm3 or 8cm3
posted by bob

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

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

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

thank u very much
posted by rovika grg

Holy cow this question has a lot of answers!
posted by HomoNovus

Make .833333333333 as a fraction
posted by Mrs. Smith

Estimate the square root of 72 how to find it
posted by Ravi

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

90x=75
x=75/90=5/6.posted by Tissy

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

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.
posted by 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.
posted by sanchit sahu
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