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:
60
Step-by-step explanation:
90-30 = 60
Remember, Complementary angles always = 90°
Supplementary always equals 180°
For 4 copies, the total cost for preparing and printing will be the same.
Step-by-step explanation:
Let,
p be the number of pages
Company A;
Charges of preparing = $6
Charges of per page print = $2.50
A(p)= 2.50p + 6 Eqn 1
Company B;
Charges of preparing = $4
Charges of per page print = $3
B(p)= 3p + 4 Eqn 2
For equaling the cost;
A(p) = B(p)

Dividing both sides by -0.50

For 4 copies, the total cost for preparing and printing will be the same.
Keywords: Addition, division
Learn more about division at:
#LearnwithBrainly
By rewriting the equation in standard form
Center: (0,0)
Radius: 5