Can someone solve this please

4. 2.4

5.

6. IV

Step-by-step explanation:

4. 3 < 5, so we don't add a tenth when rounding. Hence the answer is 2.4

5. . Because isn't divisible by 2 or 5, we know that this is the most simplified form.

6. Putting the I before the V negates the I. So IV = 5 - 1 = 4.

The answer is 742.6

Step-by-step explanation:

What Marcel said is that if you multiply a number times 10 it is only necessary to add a zero at the end. However, with the number 74.26, it is necessary to move the dot instead of adding a zero due to this, the correct answer is 742.6 and not 74.260, which is the same as the original value (74.2.)