9th Algebra
posted by Amanda .
Im in 9th grade algebra. and we are learning adding and subtracting real numbers. im stumped on a couple of problems. I get confused when i see the absolute value lines. Does that change the munber? Do i just go on with the problem as if they werent there?
And i have NO idea how to do 2/5  7/8?!?

2/5  7/8
= 2*8/5*8  7*5/8*5
= 16/40  35/40
= 19/40 
7/20

1. find the latreal area of a cylinder of revolution if its altitude is 5.5 inches and the diameter of its base is 7 inches.

idk im in 9H soo idc either i juss need my ? answered duhhh!!!!! y else wouldi b here

what is 10 to the second power in standard form? Please answer by the end of today. Please and Thank You
Corinne Moore 
O and btw im in 8H buhh its high skool work so yahh Earth Sci all that good stuff
Corinne Moore 
y=2x^23

Quadratic functions quest

y=2x^23

Put these numbers in order from least to greatest.

1
2

3
10
2
24
30
Submit 
1223102430

Make an inputoutput table for the function use 0,1,2,3,4,5 as the x value.
Y=5(15x) 
Start with a numberX and 12,then divide by 4,next subtract7, and finally multiply by 2. a. convert the description to an algebraic expression. b.ifx=5,what is the value of the expression?