Please help me with this as soon as you can. I have no idea how to do it so please help me.

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

Find an equation for the linear function which has slope -10 and x-intercept -7

For what values of x is x2 + 2x = 24 true?