Its in the link below

B

Step-by-step explanation:

A:

Find out the original price of the bracelet.

To prove

Formula

As given

A jewelry shop is having a sale.

A bracelet is now reduced to £420.

This is 70% of the original price.

Here

Part value =  £420

Percentage = 70%

Put in the formula

Total value =  £600

Therefore the original price of the bracelet is  £600 .

B:

£1400

A reduction of 40% means that £840 is 60% of the original price

Divide £840 by 60 to find 1% then multiply by 100 to find original price

original price = £840 ×  = £1400

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent