Which of the following choices will evaluate the expression a2 + b when a = 2 and b = 3? A. 7
B. 10
C. 25
D. None of these choices are correct.

For the equations below which statement is true ?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.