Perform the following operations and prove closure. show your work.
1. x/x+3 +x+2/x+5
2. x+4/x^2+5x+6• x+3/x^2−16
3. 2/x2−9 − 3x/x^2−5x+6
4. x+4/x^2−5x+6 ÷ x^2−16/x+3
5. compare and contrast division of integers to division of rational expressions.

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

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract