11. The vertices of a triangle are P(-6, -3), Q(-3, -6), and R(-5, -2). Name the vertices of the image of the reflection of APQR across the x-axis.

v v cj van config k tbs eng r.c r.c fcb fb gb frfr

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

add 8+12 to get a simplified answer of 12r-20