I will give brainliest if you solve area and perimeter Im confused on this practice question

49xy +34y - 72z. determine the degree of the polynomial

What is the equation of the graph below? y=sec(x)-4

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