Complete the pattern by typing in the correct number for each of the following;
 a) 2500 ,     7500, tenthousands


 b)3000 , 6000 , 9000 , 2000 ,   

 c)00 , 800 , 600 ,   

 2 )Nzoia sugar factory produced 500 bags of sugar on the first day. If it produced 50 extra bags for each of the consecutive days, type in the bags produced on the fifth day?