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 equal sign and the answer on the other.

9b - 3 = 3 + b
9b = 3 + b + 3
9b - b = 3 + 3
8b = 6
b = \( \frac{6}{8} \)
b = \(\frac{3}{4}\)

The surface area of a cylinder is 2πr² + 2πrh:

sa = 2πr² + 2πrh
sa = 2π(1²) + 2π(1 x 4)
sa = 2π(1) + 2π(4)
sa = (2 x 1)π + (2 x 4)π
sa = 2π + 8π
sa = 10π

To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses:

(y - 6)(y - 1)
(y x y) + (y x -1) + (-6 x y) + (-6 x -1)
y² - y - 6y + 6
y² - 7y + 6

A trapezoid is a quadrilateral with one set of parallel sides.

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.