What is f(x) + f(x) + f(x)?

What is the solution of sqrt x+2-15=-3

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

Michelle is planting flowers in her garden. she wants the ratio of daises to carnations to be 3 to 2. michelle wants to plant a total of 35 flowers. how many daises should she plant?