Miss Ortega is purchasing 3.4 pounds of trail mix that cost 4.25 per pound how much change will Miss Ortega receive if she gives the cashier $20

First, find the total cost.

3.4 pounds x $4.25/pound = $14.45 total

Next, subtract the total cost from the amount she pays (we are assuming there is no tax in the question).

$20 - $14.45 = $5.55

So, she will receive $5.55 in change!