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

50x5=$250

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have