Matchsticks are used to make pattern shown four squares require 30 matchsticks how many squares can be made with 40 matchsticks

f is the midpoint of

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.