13x - 6y = 22
x - y = 6
6(x-y) = 6*6
6x - 6y = 36
subtract both the equations
13x - 6x -6y + 6y = -14
7x = -14
x = -2
13*-2 -6y=22
-26 -6y=22
-6y = 48
y = -8
answer: x = -2
y = -8
1.
d = rt
13 = r*3
r = 13/3
2.
v = r + at
a = (v-r)/t
702.6
I found this from middle school math.
6
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The answer is e because the volume is 54 pi mm^3. This is because the volume of a cylinder is pi * r^2 * h.