Write receipt_line(item, qty, unit_price) that returns one line of a receipt in exactly this form:
<item> x<qty> @ $<unit_price> = $<line total>
Both prices must be shown with two decimal places.
Examples
Input: item = "Apples", qty = 3, unit_price = 0.5
Output: "Apples x3 @ $0.50 = $1.50"
Constraints
0 <= qty <= 10**4,0 <= unit_price <= 10**4;itemis non-empty.
Goals
- Combine text, integers and formatted floats in one f-string
- Show prices with two decimals