Answer:
42
Step-by-step explanation:
39+39 = 78
162 - 78 = 2 lengths =84
84/2 = 42
Answer:
Step-by-step explanation:
2.
y=kx
8=-4k
k=-2
so y=-2x
3.

4.
eq. of line is y-5=4(x+2)
Answer:
5/4
Step-by-step explanation:
If the equation is

then the slope is the number multiplying x, so
slope = 5/4.
Answer:
Length: 3w-4
Step-by-step explanation:
Length: 3w-4
Width: W
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