Joanna went school supply shopping. she spent $32.49 on notebooks and pencils. notebooks cost $2.41 each and pencils cost $1.46 each. she bought a total of 19 notebooks and pencils. how many of each did she buy?

Well, you need write the system of equation:

If we call "P" to quantity of pencils and we call "N" to quantity of notebooks, the total quantity of articles in an equation is:

P+N=19

And the total money that Joanna spent in an equation is:

$1.46*P+$2.41*N=$32.49

Now you only need to solve that system.
Good luck!
M.