Step-by-step explanation:
Given
x² - 9x + 20 = 0
x² - ( 4 + 5) x + 20 = 0
x² - 4x - 5x + 20 = 0
x ( x - 4 ) - 5 (x - 4 ) = 0
(x - 4 ) ( x - 5 ) = 0
Either
x - 4 =0
x = 4
or
x - 5 =0
x = 5
x = 4 and 5
Hope it will help :)

5+x=32
x= the number of apples Sarah had before
5+x=32
subtract 5 from both sides
x=27
There is 9 units between (-6,4) and (3,4)
hope it helps!
Answer:
Step-by-step explanation:
(50/100)x = 493
0.5x = 493
x = 493/0.5
x = 986
You could have just multiplied by 2 because 50% of the school population is basically half of the school