Of On Sunday a burger Shop
Sold a cochbined total
231 hamburgers and
Cheeseburgers The number
or Cheeseburgers sold was
2 times the number of
hamburgers sold. How
many
hamburgers Sold

Step-by-step explanation:

1 : 2

Hamburger cheeseburger

(you add the 1 & 2 to make 3)

231÷3=77

1×77=77

2×77=154

77 : 154

Hamburger cheeseburger

Hope it make sense :-)

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

asnwer is (g o h o f)(x) = 2x - 6/x + 7

step-by-step explanation:

given,

f(x) = x - 3/x

g(x) = x + 3

h(x) = 2x + 1

we need to find : (g o h o f)(x)

we can write (g o h o f)(x) = g[ h{ f(x) } ]

so first we find h{f(x)}

h{f(x)} = f(x) + 3 = (x - 3/x) + 3

h{f(x)} = x - 3/x + 3

now we find g[ h{ f(x) } ].

g[ h{ f(x) } ] = g(x - 3/x + 3)       {plug h{f(x)} = x - 3/x + 3 in g[h{f(x)}] }

g(x - 3/x + 3) = 2 (x - 3/x + 3) + 1

                    = 2x - 6/x + 6 + 1

                    = 2x - 6/x + 7

hence we get (g o h o f)(x) = 2x - 6/x + 7