Earning straight a's in school this year is my goal. it is extremely important that i earn good grades so that i can get a college scholarship. also, my parents would be proud of me, and i want to prove to myself that i can earn a perfect report card. which organizational structure is used?

order of importance

Explanation:

The reasons for earning straight A's are presented according to the order of their importance. When information is prioritized by the speaker in proportion to its value, it means he/she is using an organizational structure called order of importance.  

i pretty sure it is old

explanation:

we know that, volume of a rectangular prism is given by :

✿   {length × width × height}

given : the length of rectangular prism = 5.5

given : the width of rectangular prism = 6

given : the height of rectangular prism = 3

⇒ the volume of given rectangular prism = {5.5 × 6 × 3}

⇒ the volume of given rectangular prism = 99