Answer:
$21.75
Step-by-step explanation:
Add 25% then subtract to get back to $17.40
Try a few:
1+3+5=9 too small
5+7+9= 21 just right
The greatest integer is 9
Answer:
Y-intercept
Step-by-step explanation:
Y = 0 so
x^2 + 6x - 40 = 0
(x +10)(x - 4) = 0
x+10 = 0; x = -10
x - 4 = 0; x = 4
answer is C. x = -10 and x = 4
