The sum of (-12) and (5) is

(A) 6 (B) 8 (C) -7

Two parallel lines are crossed by a transversal.what is value of x

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need