1. a sports store offered 30% off of a $150 pair of skis. what is the (a) amount of discount and (b) sale…

Explanation:

Step1: Calculate discount amount

The discount is 30% of the original price. The formula for the discount amount $D$ is $D = \text{Percentage discount}\times\text{Original price}$. Given the original price of the skis is $$150$ and the percentage discount is $30%=0.3$. So $D = 0.3\times150$. $D=45$

Step2: Calculate sale - price

The sale - price $S$ is the original price minus the discount amount. The formula is $S=\text{Original price}-\text{Discount amount}$. So $S = 150 - 45$. $S = 105$

Answer:

(a) The amount of discount is $$45$. (b) The sale price is $$105$.