How do I solve this inequality?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

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?

Consider the first four terms of the sequence below. what is the 8th term of this sequence?