Jasmine's dad is planning a surprise party for her. He will hire a
bouncy castle and will provide party food for all the guests. The
bouncy castle costs $150 for the afternoon and the food will
cost $3 per person. Andrew, Jasmine's Dad, has a budget of
$300. Write an equation and use it to determine the maximum
number of guests he can invite.
Only give the final answer - not
the formula.