Your answer is 0.00004650297619
Answer is in the photo, hope it helps. If you have any questions about the answer, please feel free to ask :)
Answer:
$5.00
Step-by-step explanation:
10 × 50/100
Discount = 10 x 0.5
You save = $5.00
Because a triangle's angles need to equal 180, you can subtract 100(30+70) and you will get 80. So 80 will be your third angle.