Question

Caleb and Sergio stacked boxes on a shelf. Caleb lifted 14 boxes and Sergio lifted 12 boxes. The boxes that Sergio lifted each weighed 10 lb more than the boxes Caleb lifted. Which expression represents the total number of pounds Sergio lifted? Let c represent the weight of each box Caleb lifted. A. 120c B. c + 10. C.12(c + 10) D. 10(c − 12)

Answer 1

If the weight of the boxes that Caleb lifted is equal to c, then each box that Sergio lifted weighed c + 10. The total number of pounds that Sergio lifted is equal to the product of the number of the boxes and the weight. That is,
                                12(c + 10)
Thus, the answer is letter C.