I cant really read it that well D:
The equation is given as W varies directly with u and inversely with d, then the equation is written as:
W = k1u
here k2 is the proportionality constant.
and p = k2

here k2 is the proportionality constant.
Thus, combining both equations we get, p = K

where K = K1*K2, is the proportionality constant.
Answer:
672
Step-by-step explanation:
V=LWH
V=12*7*8
V=672
1. Shifts up 9
2. Shifts down 2
3. Reflect over x-axis and shifts left 5
4. Shifts right 4 and down 1
5. Vertical compression of 1/3 and shifts up 2
6. Reflect over x-axis, vertical stretch of 2, and shifts left 4
7. f(x)=-(x-3)^2+7