Terrell went to dinner with his friends and order three tacos it's taco costs two dollars he has a coupon for a dollar office purchase the total cost in dollars Terrill purchases is represented by the phrase multiply 3 by 2 then subtract one write the total cost as a numerical expression

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

Often we replace "units" with something like "feet" or "meters"

examples: square feet, square meters, square yards, etc

The "square" refers to the idea that any surface area can be unwrapped and lay flat, then you can break the area of that flat figure into smaller squares. A good example of this is a dice has 6 faces and each face is a square itself, so the total surface area is the sum of all the 6 square areas.