Answer:
we cant figure it out like this
Let's buils the intersection plane:
Point P is on AB and AP=2, then PB=3; point Q is on AE and AQ=1, then QE=4. Let P' be a point on CD such that CP'=2 and Q' be a point on the plane CDHG such that P'Q'=1 and P'Q' is perpendicular to CD. The line CQ' intersects HD at point R and the plane CPQR is intersection plane.
Consider triangles ΔCDR and ΔCP'Q', they are similar. So,

,
so R is a midlepoint of the side HD (for details see picture).
Answer:
The combined cost of 1 pound of salmon and 1 pound of swordfish is $16.60
Step-by-step explanation:
Let $x be the cost of 1 pound of salmon.
The swordfish costs $0.20 per pound less than the salmon, then $(x-0.20) is the cost of 1 pound of swordfish.
Melissa buys 2.5 pounds of salmon and pays $2.5x for salmon.
Melissa buys 1.25 pounds of swordfish and pays $1.25(x-0.20) for swordfish.
She pays a total of $31.25, then

Solve this equation.

Costs:
1 pound of salmon - $8.40
1 pound of swordfish - $8.20
Combined - $16.60
Functions are written in terms of variables. The value of the function given if x = -4 is 50
<h3>Functions and values</h3>
Functions are written in terms of variables. Given the function shown;
f(x) = 3x^2 - x
If the value of x is -4, hence;
f(-4) = 3(-4)^2 - (-2)
f(-4) = 3(16) + 2
f(-4) =48 + 2
f(-4) = 50
Hence the value of the function given if x = -4 is 50
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