(x^2+8x+16)-1-16

what is the vertex form

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?