The correct answer is:
5(x + 7) To see why, let's break down the sentence into parts:
"The sum of x and 7" translates to x + 7.
"The product of 5 and the sum of x and 7" is 5 times (x + 7), which we can write as:
5(x + 7)
This is the simplified algebraic expression that represents the original sentence.