Answer:
A.) (x+9) (x-9)
Step-by-step explanation:
x² - 81
x² - 9²
(x - 9)(x + 9)
A. x-9 and x+9 because these are perfect squares. 9 times -9 is -81. x times x is x^2. 9 + -9 is 0
Joan makes $275/week.
In addition to $275, she also makes 4 percent on sales over $1000.
So, 1250 - 1000 = 250.
Then 250(0.04) = 10.
Let t = amount of her paycheck for the week.
t = $275 + $10
t = $285
68
a) y=9/8x+20
b) 76.25
