Question 496457
18 and three times d
<pre>
"and" means + (plus) and times means ×  (to multiply)

18 and three times d
 &#8595;  &#8595;     &#8595;    &#8595;   &#8595;
18  +     3    ×   d

You can leave out the × and just write the 3 next to the d.
like this:

     18 + 3d

Edwin</pre>