La hija de mi hermana es mi sobrina
Answer: 12 students for 1 teacher.
Step-by-step explanation: 36 students divided by 3 teachers is 12 students for each teacher.
ANSWER
30 students
EXPLANATION
The cost per student varies inversely as the number of students.
Inverse proportion is written as:

Let the cost per student be y.
Let the number of students be x.
It will cost each student $250 if 24 students attend. This means that:

If the cost is down to $200, it means that y is now $200.
That is:

Therefore, 30 students could attend.
Answer:
x=8
Step-by-step explanation:
Answer:
A = 15 units²
Step-by-step explanation:
The figure has 1 pair of parallel sides and is therefore a trapezium.
The area (A) of a trapezium is calculated as
A =
h (b₁ + b₂ )
where h is the perpendicular height between bases and b₁, b₂ are bases
here h = 3, b₁ = 3 , b₂ = 7 , then
A =
× 3 × (3 + 7) = 1.5 × 10 = 15 units²