The formula to solve for the volume (V) of a rectangular prism is,
V = L x W x H
where L is the length, W is width, and H the height or depth.
Substituting the known dimensions on the equation above,
V = (4 in) x (9 in) x (2.2 in) = 79.2 in^3
Thus, the volume of the cake pan is 79.2 in^3.
Simplify 1/3b to b/3
b/3 = -3
multiply both sides by 3
b = -3 * 3
multiply 3 * 3 so it can = 9
Answer: b = -9