Question 21421
Cindy's rate of making money is $27.75 / 4  in dollars per week.
If we multiply this rate by a certain number of weeks, we want the
result to be $156.00.

In other words, (dollars / week) * weeks = dollars.

So, {{{(27.75 / 4) * W = 156 }}}.

multiply both sides by 4
{{{27.75 * W = 156 * 4 }}}

divide both sides by 27.75
{{{ W = (156 * 4) / 27.75 }}}