Find the sequence and fill in the blanks
a) 13;31;24;42;35;53;-----;------;57;75.
b)0;1;2;3;6;11;20;-----;68.
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 ?
Mary has 3 pots of flowers, red, pink and yellow. She want to display them in the windowsill. How many different ways can she arrange them?
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