Answer:
Her sales would fall by 30%
Explanation:
when the shop down the street increased the price of stand-up paddleboard tours by 10%, her sales increased by 15%. This means for every decrease or increase in the price of stand-up paddleboard tours by 10%, there might be a 15% decrease or increase in sales. Therefore if the paddleboard tour price were lowered by 20%, it will lower her sales by 30%.
