Identify each pair of congruent vertical angles. Please help! I’ll give out brainliest to whoever answers first and correctly !! :)

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

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4