Ben walks at a rate of 3 miles per hour. he runs at the rate of 6 miles per hour. in one week, the combined distance that he walks and runs is 210 miles. write a linear model that relates the number of hours that ben walks to the number of hours ben runs

Which option identifies how kevin should proceed in the following scenario? four years ago kevin designed an mp3 player for young children. now that technology has changed, he would like to update his design to ensure that it encompasses cutting-edge techniques. by creating a third-angle projection of his ideas by designing an isometric projection of his new ideas by referring to past designs and illustrations of his original model by conferring with engineers who have improved upon similar devices