Simplify the expressions below.
8-13-(-4)= -1 b. 4-(-7)+(-2)= 9 c. -7+3-20= -24

What is the prime factorization of 195

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.