Last year, jora spent

30% of his salary on rent

2/5 of his salary on entertainment

1/4 of his salary on living expenses.

he saved the rest of his salary.

jora spent £3600 on living expenses.

work out how much money he saved.

Step-by-step explanation:

Let

x ----> Jora's salary

we know that

Jora spent

1) 30% of his salary on rent

2) 1/4 of his salary on living expenses

3) He saved the rest of his salary

4) Jora spent £3600 on living expenses

so

Solve for x

Find out how much money he saved

Remember that

substitute the value of x

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.