D=ab-c Theres your answer
a-1<span />

solve for "k", to find k or the "constant of variation"
then plug k's value back to

now.... what is "p" when q = 5? well, just set "q" to 5 on the right-hand-side, and simplify, to see what "p" is
<span>√85</span>≈<span>9.21954445
Hope this helps. c:</span>
The third equation is linear
Answer:
8n^2+7n^3
Step-by-step explanation:
8n^2+4n^4+7n^3-4n^4
=8n^2+7n^3