Georgia, a widow, has take-home pay of $1,050 a week from her part-time job. Her disability insurance coverage replaces 70 percent of her earnings after a four-week waiting period. What amount would she receive in disability benefits if an illness kept Georgia off work for 17 weeks

An increase in quantity supplied is represented by a shift to the right of the supply curve. 

If there is a decrease in quantity supplied it is represented by a shift to the left of the supply curve. Supply curves will always be related to the the demand of the item and the demand is based on quantity sold at any given price.