tertre

Yes, they are also called complementary angles. 

This is just: $3\frac{2}{10}=\boxed{3{\frac{1}{5}}}$ .

Since we have a line segment, this attains $a+2x+3x=80$. Now, plugging in the value of $a$, we get  ^{$45+5x=180, 5x=135$ . Solving for $x$, we get $\boxed{x=27^\circ}.$}

Just count the end results. Since we have two for each, our answer is $2*2=\boxed{4}.$

Just multiply: $\frac{5}{7}*14=5*2=\boxed{10}.$

Thank you, CPhill! Great solution!

No angle should be less than 61 degrees. This question was also posted here: https://web2.0calc.com/questions/help_53845

Lol! It's okay, I'm watching football, too!

@CPhill, isn't it 5x=100, x=20?

Not quite, Rom. Continuing with my method and plugging the values of b, we get b=6, so the answer is $\boxed{\frac{5}{6}}.$ Can someone verify this?