Step-by-step explanation:
911
The answer I believe is the third choice.
3, -2, -7, -12
These all fit into f(n)-5=f(n+1)
6. True_____________ marked price is the price printed on an item.
7. True_____________ percentage profit and loss is calculated as a percentage of the cost price.
8. False_____________ 30% as a decimal is 0.03.
9. True_____________ sales tax is also known as VAT.
10. False____________ the hire purchase price is also known as the down payment.
I believe it is d because they are proportional to each other
20/ X= 100
⇒ X= 20/100 (inverse operation)
⇒ X= 1/5
Final answer: X= 1/5