Using the table of values decide if evaluating for the given value of times would be an example of interpolation or extrapolation

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?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?