I would think that it would be A.... I am an expert but, only in 8th, so I would double check.
Answer:
1 hour and 54 minutes and ignore this stuff sjsjsbdbsj
Let AB is representing height of man which is 1.82 m tall.
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.