If u understand this May u help me on it please

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

∆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.