Final answer:
Sandano's new wage after a 5% raise on his current weekly wage of $320 is $336.
Step-by-step explanation:
Sandano currently earns a weekly wage of $320 and is given a wage rise of 5%.
To find his new wage, we will calculate 5% of his current wage and then add that amount to his current wage.
The 5% wage rise can be calculated as follows:
New Wage = Current Wage + (Current Wage × Percentage Increase)
New Wage = $320 + ($320 × 0.05)
New Wage = $320 + $16
Therefore, Sandano's new wage after a 5% raise would be $336.