What is the power set of set {a, b, c}?

Write down the post-order traversal vertex sequence of the following binary tree. 

Refer to the given tree. Which one of the following corresponds to the word “kob”?

Write the system of linear equations represented by the following augmented matrix.  

Give the number of valence electrons for SO3.

How many rows are in a truth table for the proposition (p ∧ ¬r) ∨ (q ∧ ¬p) ∨ (r ∧ p) ?

Given the balanced equation 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), if 82.0 g of NH 3 react, how many grams of NO should form?

To perform a certain task, suppose that algorithm A requires  operations to compute. What is the 

Given definition: R is a relation on a set A. The relation R is transitive if for every x,y,z in A, xRy and yRz imply xRz. True or False. Let R be a relation defined on set S where S = {1, 2, 3} and R = {(1,1), (1,2), (2, 1)}. R is transitive.  

An energy input of 227 kJ is required to form acetylene from its elements. Convert this energy to units of calories.