Multipication and division Expressions (HELP!!!!!!)

I have three problems that I'm stumped on Please help :confused: Math is not my favorite subject :mad: Help!!! anyone out there... :D

1. 401 + 18 x z for z = 10________

2. 55 - K ./. 6 for k = 30 _________

3. 32 + 55 x b ./. 11 for b = 2___________

this symbol is divided by ./. I don't know what to type for division.

Thanks

Keith (fifth grade)

1. 401 + 18*x*z, for z = 10

we plug in z = 10,

401 + 18*x*10
401 + 180x

2. 55 - K/6 for k = 30

we plug in k = 30,

55 - 30/6
55 - 5
50


3. 32 + 55 x b/11 for b = 2

let us see you try to do 3 by substituting b=2, I'll correct you if you make a mistake.