$\backslash$table$[[$Organize back room,$3$ days$],[$Launch customer survey,$4$ days$],[$Order new products,$1$ day$],[$Finish employee reviews,$2$ days$],[$Update website,$2$ days$],[$Write annual report,$3$ days$],[$Submit invoices,$1$ day$],[$Plan for conference,$1$ day$],[$Call new sales leads,$2$ days$]]$

Assuming you can only work on one task at a time, what's the maximum number of tasks you can complete in $10$ days?

ENTER INTEGER ANSWER