The second way La
Française des Jeux can figure the cost
in by adding the cost of a jersey and helmet to find the cost
per person and then multiply by 9 people.
(180 + 135)
× 9
(Note: Using this method, the parentheses
are necessary.)
315 × 9
2835 francs
Either way, the lottery will arrive at
a total cost of 2835 francs. 
