Answer:
$13.76
Explanation:
You multiply the number of erasers by the amount it costs, which is .69 times 3, and that gives you $2.07. Then you do the same for the gum, whixh gives u $2.98. Then you add together all of the prices which gives you $6.24. Finally, you subtract that total from 20 to get the amount of change, which is $13.76.