How to use num2str and disp command?

Here's the question I got from lecture,

Find the help pages for num2str and disp.

Given >>speedlimit = 5;

Write a line of code that displays the message “The local speed limit is speedlimit km/h”, inserting the value where indicated.

How can I display those line only using num2str and disp command?

[Star Strider]

Quoting the assignment:

Find the help pages for num2str and disp.

Answer 1

[Jan]

This

 Find the help pages for num2str and disp.

means:

doc num2str
doc disp

You can concatenate strings like this:

['Hi ', 'I am ', 'here']