For what value of x is the rational expression below undefined?
2x + 4
x -7

c. 7
od. 2

The value of x is 7 ⇒ answer c

Step-by-step explanation:

* Lets explain how to solve the problem

- The rational expression has a numerator and a denominator

- Ex: f(x)/g(x) is a rational expression where f(x) is the numerator and

  g(x) is the denominator

- The fraction is undefined if its denominator is 0

- If g(x) = 0 then the rational expression f(x)/g(x) is undefined

* Lets solve the problem

∵ The rational expression is

∴ The numerator is 2x + 4

∴ The denominator is x - 7

- Put the denominator equal zero to find the value of x which makes

 the denominator equal zero

∴ x - 7 = 0 ⇒ add 7 to both sides

∴ x = 7

* The value of x is 7

3 1/3 x 2 3/5 = 8 2/3

step-by-step explanation:

just multiply the first number by the second number to get your answer.

it would open into a square depending on the type of envelope i’m not sure about the second part