chris deposits $300 into an account that pays simple interest at a rate of 5% per year. How much interest will he be paid in the first 4 years?

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?