Given:
Consider the discount percent and SP are given.
To find:
The MP.
Solution:
Let x% be the discount percent Then




Multiply both sides by 100.

Divide both sides by
.

Therefore, the formula for MP is
, where x is the discount percentage.
40 x $6=$240
<span>6.5 x $9=$58.50 </span>
<span>8 x $ 12=$ 96 </span>
<span>Answer $394.50</span>
Vera has 5 pairs of necklaces and wants to own 22 pairs. That means she needs to purchase 17 pairs at $1 per pair.
Vera needs to spend $17.