Can someone please help.

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?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Select the two pairs of figures that are similar.