I think its $36,400 because jan- 100 feb- 100x3=300 march- 300x3=900 april- 900x3=2,700 may- 2,700x3=8,100 june 8,100x3=24,300 then add them all together 100+300+900+2,700+8,100+24,300= 36,400
b. 7,
c. 8,
d. 15
A fair was attended by 834,009 people
Rounding up this number of people to nearest ten thousand.
9 has a 'ones' value
Going to the right from left:
Second last zero has a 'tens' value.
Third from last zero has a 'thousands' value
4 has 'ten thousands' value
Round up 4 and because it is less than five it converts to zero
This gives an answer of 830,000.