Answer:
C. 15+8w
Step-by-step explanation:
Initial amount = $15
Let the number of weeks in which savings are done be 'w'
Savings per week = $8
The total amount would be the sum of the initial amount and the product of the $8 and the number of weeks in which savings were done :
Thus, algebraic expression would be: 15+8w
correct option is C.