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What are some really good math websites

My teacher told me that we have to find a set of really good math websites to help ourselves when needed and i need help to find some. I found www.purplemath.com but i still need more

Word problem

At the local video rental store, jose rents 2 movies and 3 games for a total of \$15.50. At the same time  Meg rents 3 movies and 1 game for a total of \$12.05. How much money is needed to rent...

Inequalities

A) on the same set of coordinates axes, graph  the following system of inequalities y<-2x+3 y-3x>-2   b)  write the coordinates of a point in the solution...

Elimination question

If you do not have equal coefficients for both variables, can you still use the elimination method? Explain.

How do you solve this equation using elimination

2x-4y=-6 X-y=-1

draw a line with the given intercepts and graph each line using x and y intercepts

draw a line with the given intercpets    x intercept =4 y intercept =5   and    x intercept =-6 y intercept =-8   graph each line...

(3,2);y=3x-2

is this equivalent ?

the expression -10/26 (-10 over 26) equivalent to 10/-26 (10 over -26)

do you think kangroos under went a natural selection to adopt these traits? why or why not?

kangroos have hind legs that help them hop fast to flee from predators.they can also swim away from predators. they only eat plants

how do you find slope ?

what is the slope of the line whose equation is 3x-2y=12?

what is the slope of the graph y=-2x+5

how do i solve this

sales tax question (too long)

the sales tax collected on each sale varies directly as the amount of the sale. What is the constant of varation if a sale tax of \$0.63 is collected on a sale of \$9.00?   how would u...

find and graph the solution set of this inequality

-3<x-1≤2 i solved ...... -3<x-1 -2<x and ....... x-1≤2 x≤3 but how do i graph this???? please help

-3<x−1≤2