Answer:
n = 1500
Step-by-step explanation:
The sample size is the number of students that were asked
n = 1500
Answer:
53
Step-by-step explanation:
Total amount = Given to his brother + Amount left
20 + 33 = 53
Answer:
x^3+3x^2+9x+27
Step-by-step explanation:

_____
The factoring of the difference of squares is used (twice):
a² -b² = (a -b)(a +b)
Answer:
??? What is the question? ???
Step-by-step explanation: