Which of the following are more precise than a weight of 10 pounds? a.50 pounds b.30 pounds c.15.5 pounds d.8.0 pounds

Step-by-step explanation:

Anything expressed to a precision smaller than 10 pounds will be more precise. Choices C and D are both expressed to a precision of 1/10 pound, so are more precise than a weight expressed to the nearest 10 pounds.

The convention for indicating that the 0 in 10 is significant is to write the number with a trailing decimal point: 10. pounds. Since the number here is not written that way, we must presume its precision is 10 pounds (not 1 pound). Both of the choices 50 and 30 suffer the same problem.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.