Consider the sequence: 7, 8, 9, …, … , … what is the n th term of this sequence? n = variable, n doesn't equal 9

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?

Three times the sum of a number and seven is negative thirty-six. what is the number?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b