What are the solutions to he quadratic equation 3x^2+15-18=0

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost. swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Which point is a solution to y s 4x + 5?

I’m confused on how to work the pie charts