A science class is timing how long it takes an object to hit the ground. When the object fell, its elevation
changed a total of – 4.9 min 0.71 s.
Which rational number represents the average change in elevation of the object, in meters per second?
-4.9
-0.71
4.9
1
-4.9
0.71

Julius went on a volunteer trip to centralamerica and took medical supplies with him. he packed a bag with 50 pounds of supplies. he brought pieces of equipment that weighed10 pounds each and bottles of medicine thatweighed pound each prepresents thenumber of pieces of equipment he broughtand b represents the number of bottles ofmedicine he brought then the total weight canbe represented by the equation 10p+b 50.the brought 3 pieces of equipment, how manybottles of medicine did he bring?