To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.

2b + 9 < \( \frac{b}{3} \)
3 x (2b + 9) < b
(3 x 2b) + (3 x 9) < b
6b + 27 < b
6b + 27 - b < 0
6b - b < -27
5b < -27
b < \( \frac{-27}{5} \)
b < -5\(\frac{2}{5}\)

A cylinder is a solid figure with straight parallel sides and a circular or oval cross section with a radius (r) and a height (h). The volume of a cylinder is π r²h and the surface area is 2(π r²) + 2π rh.

According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:

c² = a² + b²
c² = 2² + 6²
c² = 4 + 36
c² = 40
c = \( \sqrt{40} \)

The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):

sa = 2lw + 2wh + 2lh
sa = (2 x 4 x 5) + (2 x 5 x 8) + (2 x 4 x 8)
sa = (40) + (80) + (64)
sa = 184

The volume of a cube is height x length x width:

v = h x l x w
v = 4 x 1 x 6
v = 24