ANYBODY PLZ hELP ASAP

Let the  measure  of  the  smallest  angle  =  A

Let the measure  of the largest  angle  be =  A  + 4D     

Where D  is the  common difference in the arithmetic sequence

And  we  know  that

(A + 4D)  - A   = 44     simplify

4D =  44   divide  both sides  by 

D  = 11

And the sum of the interior angles =  540°.....so we have that

A  + (A + 11)  + (A + 22)  + (A + 33)  + (A + 44)   = 540

5A  + 110  =  540       subtract 110 from both sides

5A  = 430     divide  both sides  by  5

A =  86°