A particle move along the x axis so that at time t>0 it’s position is given by x(t)=2t^3+3t^2-36t+50. What is the total distance traveled by the particle over the time interval 0

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?