Ashop owner offered a 20% discount off the regular price of a mirror. the amount of the discount was $3. what was the regular price of the item?

A shop owner offered a 20% discount. The regular price of the item is $ 15

Solution:

Let the regular price of the mirror be taken as x  

The percentage discount offered on the mirror, as given in the question, is equal to 20%  

The discount amount (D) as mentioned in the question is $3

Discount amount is given as:

Thus, the original cost of the mirror is x = 15 and after discount the price would have been 15 -3 = 12

Thus the regular price of the item is $ 15

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

no

step-by-step explanation: