Here's another one.
See the attached picture.
Answer:
q=<u>bp</u>
<u> </u><u> </u><u> </u><u> </u>a- cp
Step-by-step explanation:
<u>a</u> - <u>b</u><u> </u>= c
p q
Multiply through by pq
qa - bp = cpq
qa - cpq = bp
q [a-cq] = bp
q= <u>bp</u>
<u> </u><u> </u><u> </u><u> </u><u> </u>a-cp
If it is 35% off, then u r paying 65%...
0.65(128.25) = 83.36....this is without the tax
and there is a 4% sales tax....
83.36 * 1.04 = 86.69 <====
It should be figure B
Hope it helps :)