Answer:
20%×X=30
x=150
Step-by-step explanation:
30÷20%=150
20%×150=30
19 = h/3 - 8
add 8 to each side
19+8 = h/3 -8 +8
27 = h/3
multiply by 3 on each side
27*3 = h/3 *3
81 = h
Answer:
It would be A
Step-by-step explanation:
This is because the population is the amount of people in the school, in this question it would be the students.
Hence the population is the 75 students from each grade level.
Answer:
see explanation
Step-by-step explanation:
The length of the arc is calculated as
arc = circumference of circle × fraction of circle
= 2πr × 
← r = 1
= 2π × 
= 
≈ 
= 1.57
Answer:
67
Step-by-step explanation:
-6
