That would be the transitive property
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.
Answer:
Person D
Step-by-step explanation: Because when you subtract the deductions from what the people earned. Person D has the least amount of money.
5. 57000+57800+58198=172998/3=57666 average for last 3 years
57666*.015=864.99*18=$15,569.82
6. 14919+16222=31141/2=15570.5 average per quarter
15570.5/12=1297.54 average per week
1297.54*.60=$778.53