For an entire grading period at school, James played video games for 70 minutes a day, and has a GPA of 2.3. For the next grading period his parents said he was not allowed more than 45 minutes of video games each day and his GPA increased to 3.58. Which statement about this situation is true?
A) The number of minutes playing video games varies inversely with GPA with a constant of variation k = 30.4.
B) The number of minutes playing video games varies inversely with GPA with a constant of variation k = 161.
C) The number of minutes playing video games varies directly with GPA with a constant of variation k = 161.
D) The number of minutes playing video games varies directly with GPA with a constant of variation k = 30.4.

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)