algebra help?

Question

write each expression using positive exponents [text]= exponent {text}=fraction.

1. x[-1]
2. s[-2]t[-1]
3. mn[-2]
4. 2(xy)[-2]
5. {1/2[-2]}

write each fracton as an expression using negative exponents
1. 1/5[3]
2. 1/a
3. 1/16
4. 1/x[6]
5. 2/3[2]
6. a/b[6]
7. f/g[3]
8. 3m/n[2]
please answer them!more problem on another question!!!!

Answer 1

yeah i'll get you started but i would recommened going to http://www.purplemath.com/modules/exponent2.htm.

1. 1/x
2. 1/st
3. m/n[2]

2nd set
1. 5[-3]

Answer 2

to understand this kind of questions you need pen tablet.