Which of the following is closest to **17.2 × 7.8**?

**A.**130**B.**140**C.**150**D.**160

Answer: **A.** 130

To estimate **17.2 × 7.8**, we can round each number to the nearest whole number:

17.2 ≈ 17

7.8 ≈ 8

Now, we can calculate the product of these rounded numbers:

17 × 8 = 136

So, the closest option to **17.2 × 7.8** is **130**.