Suppose you know that s angle and y angle are complementary, and that angle s=2(angle y) - 30. find angle y

∆red ≅ ∆ by rule will give brainiest if possible

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

25 ! i need asap! ! ill mark brainliest!