Answer:
Money required[tex]=\$ 8[/tex]
Step-by-step explanation:
Nina already owns 2 necklaces and she wants to have total 6 necklaces.
Number of necklaces she needs more[tex]=6-2=4[/tex]
Price of [tex]1\ necklaces=\$2[/tex]
Let Nina needs [tex]\$ x[/tex] to buy [tex]4[/tex] more necklaces=
Money required to buy [tex]4\ necklaces[/tex][tex]=cost\ of\ 1\ necklace\times number\ of\ necklaces[/tex]
[tex]x=2\times 4\\x=\$ 8[/tex]
