Menciona el angulo mas grande que se forma en grados y radianes a las 9:10

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

8.74 rounded to the nearest whole number