Can you plz answer this question I need it ASAP

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

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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.