<h3>
Answer: 1 plane</h3>
Think of a flat sheet of paper. If you draw a line through that paper, you can rotate the paper around the line to lake it spin like a fan blade. This suggests infinitely many planes go through the same straight line. If you add a point somewhere off the line, then the plane becomes fixed and there is only one plane that goes through both the line and the point at the same time.
Answer:6 times 10 is not 30 it is 60 the and should be 18+30=3(6+10)
Step-by-step explanation:
It has to be the first one
4y + 8x = 112
V = x*x*y= x^2y
y + 2 x = 28
y = 28 - 2x
V = x^2 (28-2x) = 28 x^2 - 2 x^3
Let x be the width, length=4x
(4x+x)×2×2=12.5
20x=12.5
x=0.625
Length = 4×0.625=2.5
Area = 2.5×0.625= 1.5625 km square