arithmetic
I am 5'2 and cast a shadow 3' long. My friend casts a shadow 3' 5" long. How tall is he?
health
Why would the task of Universal health care coverage raise health care costs?
Algebra
how do I check my answer to a problem. The problem is: x/5 - 1/2 = 3 I know the answer is 35/2 but how do you check it. 35/2 /5 - 1/2 = 3?
chemistry
How would you caculate this problem: What is the mass in grams of 150*10^12 iron atoms, each having a mass of 56 amu?
algebra
y >=-1
algebra
the xx is in the answer box, so it is x x then the answer
algebra
0.8x+1<=1.2x-8 x x
algebra
9x-7y=-49
Algebra
p(x)=x^2-2x+10
Algebra
y varies directly as x, and y=20 when x=5
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