A) 7.5/3=2.5 
b) So about 3 pieces can be cut.
        
             
        
        
        
Answer:
1987.2
Step-by-step explanation:
We can write a proportion to find the total amount in the choir using the information given. A proportion is two equivalent ratios set equal to each other. Since we know the strength of students increased by 8% to 2160 then the original was 92%.

We will cross multiply the numerator of one ratio with denominator of the other. And then solve for y.
92(2160)=100(y)
198720=100y
y=1987.2
There are 1987.2 as the original strength of students.
 
        
             
        
        
        
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Answer:
A
Step-by-step explanation:
Both angles together are supplementary, or they add up to 180 degrees.
(3x+12)+x=180 degrees
 
        
                    
             
        
        
        
Answer:
the value of x is 18
Step-by-step explanation:
observing the figure,
  m < 1 =94 -----> by corresponding angles
(5x-4)+m < =180 degree -----> by supplementary angles
Substitute the measure of angle 1 and solve for x,
(5x-4)+94 = 180 degree
5x=180degree - 90degree
5x=90degree
x=18 degree