Please Help ASAP need for son

The first one: 26, 51, 103

Step-by-step explanation:

The angle sum of a triangle will equal 180 degrees. You can check this by adding up all of the angles.

If you were to add up the angles in the other choices, the angle sum would be higher or lower than 180 degrees.

Discounted percent = 42.5% and price of the discounted product compared to original is 57.5%

Step-by-step explanation:

$46 = Discount of some decimal of $80

46 = x(80)

46/80 = 0.575

Change it to percent

57.5% discount