Question

please answer this step by step ​

Answer 1

Step-by-step explanation:

1st answer

20%=30600

1%=1530

15%=22950

2nd answer

Here

100%=360 degree

15%=360/100×15=54 degree

3rd answer

20%=1/5

So let

Cp=5 then Sp=6=180(given)

1=30

So cp=30×5=150

Cost of single paper used 25%=150/100×25=37.50

5th answer

Royalty =15%

Printing =20%

Diff=5%

Percent difference =5/20×100=25%