Out of the 100 people in the sample, 72% said they preferred pizza. That 72% should be the same for the whole school.
1500 × .72 = 1080
about 1080 students in the school prefer pizza
21x-9+63=180
21x+54=180
21x=126
x=6
Answer:
(3x - 2)(3x + 2)
Step-by-step explanation:
9x² - 4 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Thus
9x² - 4
= (3x)² - 2²
= (3x - 2)(3x + 2) ← in factored form
I think Jessie is correct because if u mutipy those two numbers so therefore Jessie is correct if you need me to explain more plz let me knoe
