Can someone please tell me what an approximent equation best fits this picture using X and Y. Then input 10 for X and solve (this will get you Y). Please include both parts!

Aley is at the store buying some supplies for an art project. she decides to buy some colored pencils for $3.95 and a drawing tablet. the total cost of the supplies before sales tax is $6.94. what is the cost of the drawing tablet? $10.89 $2.99 $1.76 $3.01