Step-by-step explanation:
a×10⁰×a
<em>Since,</em><em> </em><em>m⁰</em><em>=</em><em>1</em><em> </em><em>therefore</em>
a×1×a
a²
a × 10⁰ × a = a × 1 × a = a × a = a²
Answer:
$50 - d = $22.50
Since she's receiving a change, it means that d is smaller than $50, therefore, it will be deducted from it to give the change.
My guess is A. Forgive if I'm wrong.
