Answer: the unit price is $1.2 per pound.
Explanation:
In England, Sally notices the cost of bananas is £2.10/kg.
Applying the conversion rate from dollars to Great Britain Pounds (GBP),
If $1 = £0.77, then
£2.10 = 2.10/0.77 = 2.72
Applying the conversion rate from pounds to kilogram,
1 kilogram = 2.2 pounds
Therefore, the unit price in dollars per pound would be
2.72/2.2 = $1.236
Rounding up to the nearest cent, it becomes
$1.2 per pound