A number should be rounded up if it is the first digit
b. the number after it is between 0 and 4
the number after it is between 5 and 9
d. it is the last digit
Please select the best answer from the choices prou

C.) The number after it is between 5 and 9

Explanation:

If the digit to the right is less than five, you must leave the digit you want to round to as it is.

But, if the digit to the right is greater than or equal to five, you must increase the value of the digit you're rounding to by one. And any remaining digits before the decimal point become zeros, and any that are after the decimal point are dropped.

Hope this helps you out! : )

answer; ///i do believe that the correct answer is (b); ///particle composed of two or more atoms bonded together;

the maximum mass of nh3 is nh3 in grams