A shopkeeper gains 30% if he sells the article on its marked price. He gains only Rs. 180 if 10% discount is allowed. So, what's the cost price of the article?

72 is the answer to this problem

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

he earned 78.75 in interest.

step-by-step explanation: