Here you go! Hope this helps!
Answer:
25
Step-by-step explanation:

Hence 11% represents 25 students.
Answer:
(x + 6)(x + 13)
Step-by-step explanation:
Given
x² + 19x + 78
Consider the factors of the constant term (+ 78) whuch sum to give the coefficient of the x- term (+ 19)
The factors are + 6 and + 13 , since
6 ×13 = + 78 and 6 + 13 = + 19 , then
x² + 19x + 78 = (x + 6)(x + 13) ← in factored form
So the ratio is 3:5. Se need to find x:1 you do that by dividing each side by 5. 3/5 = .6
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