Please help me, i will mark u brainliest

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

In a newspaper, it was reported that yearly robberies in springfield were up 25% to 265 in 2013 from 2012. how many robberies were there in springfield in 2012?

How do i create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12