a shopkeeper marks his goods at 30 percent
above the cost price and then gives a discount
of 10 percent. find his gain percent.

Step-by-step explanation:

Let the cost price be = $ 100

Increased price = 100 * 30/100   = $30

Market price = 100 +30 = $130

Discount amount = 10% of 130 = 10/100 * 130 = $ 13

Price after discount = 130 - 13 = $ 117

Gain = 117 -  100 = 17

Gain = 17%

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: