He would have 21 before he bought the 10 stamp because 31-10=21
I’m pretty sure it’s just 28
I need this answer too can you please help me out too if you find the answer
Explanation
Answer:
D
Step-by-step explanation:

Therefore, the correct answer is D. Hope this helps!
Answer:
Hey Friend.....
Step-by-step explanation:
This is ur answer....
<h3>
<em>68 + 52 = 120</em></h3><h3>
<em>Sum of Triangle = 180 </em></h3><h3>
<em>Value of Interior Angle = </em></h3><h3>
<em>180 - 120 </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>= 60</em></h3><h3>
<em>Supplementary Angle Measure </em><em>=</em><em> </em><em>180 </em></h3><h3>
<em>= 180 - 60 </em></h3><h3>
<em> </em></h3><h3>
<em>Value of F Angle = 120</em></h3>
Hope it helps!
Brainliest pls!
Follow me! :)