Respuesta :

wegnerkolmp2741o

Answer:

$15.84

Step-by-step explanation:

We can write a proportion to solve

12 pens        18 pens

------------  = -------------

10.56            cost

Using cross products

12 * cost = 10.56 * 18

12 cost = 190.08

Divide each side by 12

cost = 190.08/12

cost =15.84

XxROBINxX

Answer:

$15.84

Step-by-step explanation:

Writing a proportion.

12 pens 18 pens

------------ = -------------

10.56 cost

Cross products

12 * cost = 10.56 * 18

12 cost = 190.08

( ÷ ) each side by 12

cost = 190.08/12

cost = 15.84

#BrainliestBunch

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