Answer: The total number of student in the school = 240.
Step-by-step explanation:
Let x be the total number of students in the school.
Given: 35% of the students at Charles drew middle school are 6th graders.
i.e. Number of sixth graders = 35% of x = 0.35x [35% = 0.35]
Since there are 84 sixth graders in the school,
So 
Divide both sides by 0.35, we get

Hence, the total number of student in the school = 240.
Answer: 1. D. IV
2. A. I
3. A. I
Step-by-step explanation: 1. You have to move the quadrilateral (the shape) 7 units to the right and down 5 units. You can see that it is in the fourth quadrant.
2. You have to flip the shape over the y-axis. It moves to the first quadrant.
3. If you rotate the shape to the right around the origin, it ends up in the first quadrant.
Answer:If Victoria rides 18 more and Ted rode 11 .You will add 11+18=29.Hope this helps!!!
Step-by-step explanation:
Answer: 90 degrees
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Explanation:
Let x and y be the two angles. Because they are supplementary angles, this means x+y = 180. Also since we're told that the angle is its own supplement, we can say that y = x.
Consequently, we can replace y with x and solve for x like so:
x+y = 180
x+x = 180 .... y is replaced with x since y = x
2x = 180
2x/2 = 180/2
x = 90
This means y = 90 as well. As a check, note how
x+y = 90+90 = 180
which verifies our answer.
23 is a prime number because the only factors ( numbers that can be multiplied to get 23) are 1 and 23.