Based on the information provided, consider the equation.....
Total Weekly $$ Amount Earned = $0.12x(450+357+567+678+407)
Executing the distributive property for $0.12 to each term inside the parenthesis, get.....
$ WeeklyTotal=($0.12x450)+($0.12x357)+....and so on.
Each term (after distribution) gives the dollar amount earned EACH day for five days (five terms). For weekly total earned, simply add all terms AFTER distribution.
Note: You could have also added the pick totals for the five days, then multiplied by $0.12 to get the total $$ amount for the week, but that would have NOT been using the Distributive Property!