

<h2><u>refer </u><u>to</u><u> the</u><u> attachment</u><u> for</u><u> explanation</u></h2>
<h2><u>hope</u><u> it</u><u> helps</u></h2>
Answer:
The additive property of equality.
Step-by-step explanation:
36 is added to both sides of the equation.
90 x 0.4 = 36
90 - 36 = 54
The sale price is $54
Answer:
3x²- 1
Step-by-step explanation:
f(-3) when f(x) = -x²+1
(-x²+1) × -3
3x²- 1
.1 repeating - decimal
11% - percentage