Russia bought 9 books for $3 each sold them making a profit of $18 for what price did she sell each book?​

$45

Step-by-step explanation:

Profit= $18

Books = 9

Sold each at = $3

So, total CP (Cost Price)= 9*3 = $ 27

Also Profit = SP - CP

Therefore, SP = Profit + CP

= 18 + 27 = $45

We are given two chords of a circle intersecting at C point.

According to intersection rule of chords of a circle

AC × CV = WC × CU

Plugging values of TC, CV, WC and UC in formula, we get

14(2x+2) = 12 (2x+5)

28x + 28 = 24x + 60.

Subtracting 28 from both sides, we get

28x + 28-28 = 24x + 60-28.

28x = 24x + 32.

Subtracting 24x from both sides, we get

28x-24x = 24x-24x + 32.

4x = 32.

Dividing both sides by 4, we get

x = 8.

We need to find the length of TV.

TV = 14+ 2x+2.

Plugging x=8, we get

TV = 14 + 2(8) +2 = 14 +16 +2 =32.