9. Given the perimeter of a triangle P= 5x + 3y - 2 and the length of two of the sides represented by the following expressions, 2x + 4y - 3 and -x+7y + 4. find an expression for the third side.

please answer this this will depend on my grade and i need to pass

thank you :)

Answer

6x - 8y - 3

Step-by-step explanation:

Since perimeter = 5x + 3y - 2,

(5x + 3y - 2) - (4y - 3 + -x + 7y + 4)

5x + 3y - 2 - (11y - x + 1)

open the bracket

5x + 3y - 2 - 11y + x -1

6x - 8y - 3

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt