Math Is Fun Forum

Ok hello everyone and thanks for your time I need help with 2 things

1) how do u graph with a fraction in a equation, do I just use a table of values?
2) Word Problem : Kyle invested $20 000, part in bonds that paid 3% annum and the remainder in term deposits that paid 5 per annum.  The total interest after one year was $760.  How much did she invest at each rate?

Thanks for the help