Answer : The amount needed to spend to save $170 is, $32.3
Explanation :
As we are given that an online buying club requires an annual fee of $170 and a 19% discount on purchases.
Now we have to determine the amount needed to spend to save $170.
As, for every $100 the discount will be = $19
So, for every $170 the discount will be = [tex]\frac{\$ 170}{\$ 100}\times \$ 19[/tex]
= $32.3
Thus, the amount needed to spend to save $170 is, $32.3