<p>Nevermind, got it.</p>
<p>For the second one, you messed up because there are only 180degrees in a triangle. Therefore the answer is 30 (75-45).</p>
<p>10+13=23</p>
<p>Looking at #2.</p>
<p>OK, I guess you see what is wrong with that one. We all make silly mistakes.</p>
<p>Haha you didn’t have to delete everything, this could have been helpful to others. Anyways, yes, they were just silly mistakes and you were along the right train of thought just careless errors that your going to just have to be more careful about.</p>