Lock#6 are they similar? PLEASE HELP ME IM DYING FROM TRYNA UNDERSTAND THIS

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz