Find the domain of the function f(x)= x+5/3-x

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

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.