Lily has three notebooks. Saly has five notebooks. Mai has more than Lily four notebooks but Mai has less than James 4 notebooks. How many notebooks are there does James have ?

The provincial : \(\dfrac{1}{1.3}+\dfrac{1}{3.5}+\dfrac{1}{5.7}+.......+\dfrac{1}{99.101}\)

The provincial : 1.2 + 2.3 + 3.4 + ....... + 199.200

The provincial : 1.3 + 3.5 + 5.7 + ...... + 99.101

The provincial : A = 1.2 + 2.3 + 3.4 + ...... + 100.101

                          B = 1 + 2 + 3 + ...... + 100

                         C = 1² + 2² + 3² + ....... + 100²

A rectangle with a half perimeter of 36 meters in length is 24 meters. Calculate rectangular perimeters in two ways