Answer:
Andrew wins the round.
Step-by-step explanation:
Seeing as red is negative and black is positive, that would make the equations as follows, in the order of Abby, Ashley, Andrew, and Anna.

Meaning that Andrew wins, as his sum is the highest.
Answer:
No
Step-by-step explanation:
From part (b)
If number who voted = 280
Number of voters who would have voted Geron:
35% * 280
0. 35 * 280 = 98 voters
40 people voted for others:
To check if estimate from. Part b is accurate :
10% voted for others
10% of estimated voters = 40
Let, number of estimated voters = x
0.1 * x = 40
0.1x = 40
x = 40/0.1
x = 400
If 40 people Voted others, the the number of voters should be 400 and not 280
Answer:
4 students
Step-by-step explanation:
The total number of students is given by:

Where N is the total number of students, A is the number of students that have taken Math 2A, B is the number of students that have taken Math 2B, and C is the number of students that have taken Math 2C:

4 students in Group A have taken all three classes.
*The number of students that have taken two classes has be subtracted so those students do not get counted twice