Answer
a) $x+5$
b) $5>x$
Work Step by Step
a) To translate the given sentence into an expression, we will use x for the unknown number. "5 greater than a number" requires us to add 5 to the number, x. We start with x and add 5 to it. Therefore, the answer is: $x+5$
b) To translate the given sentence into an expression, we will use x for the unknown number. "5 is greater than a number" is an inequality expressing that 5 is greater than a number, x. Therefore, we will use the "greater than" sign, and our answer is: $5>x$
