First, you must find how much $ the discount takes off
89.99 * .15
=13.4985
Subtract that from 89.99
=76.4915
If you estimate it,
$ 76.49
Answer:
4.2
Step-by-step explanation:
Ok the points are (-1, 2) and (1, -2)
Put it in the formula
d = 
√18 = 4.2426 ≈ 4.2
Hope this helps ya!!
X^2 - 8x = (x - 4)^2 - 16
we add 16 to give x^2 - 8x + 16 which is a perfect square
x^2 - 8x + 16 = (x - 4)^2
answer is 16
Answer × = 9
Step-by-step explanation:
3×9-20