Answer:
no
Step-by-step explanation:
A. 38
Let X = seventh graders
6th graders are twice the number of 7th graders; therefore, 6th graders will be 2X.
The total number of students is 57.
2X + X = 57
3X = 57
X = 57 / 3
X = 19
IF X represents the 7th graders; there are 19 seventh graders present.
Since 6th graders are represented by 2X; Then, 2 * 19 = 38 is the number of 6th graders present.
Add both numbers to check: 19 + 38 = 57.
Answer:
100%
Step-by-step explanation:
It is confirmed to happen, or 
5 3/4- 2 2/3= 3.083~
Movie B was 3.083~ *units* longer
