Answer:
right triangle
Step-by-step explanation:
Notice it has a right angle (90º) in its corner. Therefore, it is a right triangle.
Right triangles look like this: ⊿
Conner: $354 - 243 cents
243 cents = $2.43 because 100 cents = 1 dollar
Conner: $354 - $2.43 = $351.57
$351.57
He has 351 dollars left.
Dang if not digit is used more than once then i go with 720 :)