30,840 is expanses for by place value is 30,000 + 800 + 40. Add them together and you get 30,840.
To do this you need to do 4300 x 1.04 to the power of 3
The answer is 210 children tickets were sold . if you multiply the first equation by 7 it would be 7x+7y=2590. then subtract equation 2 from 1 you will have 4x=840 so x=210. Also you can use substitution method.
0.65, or in fraction form 65/100
