Which situation represents a proportional relationship? The cost of purchasing grapefruit for $1.80 per pound with a coupon for $1.00 off the total
cost
The cost of purchasing apples for $1.75 per pound plus a shipping fee of $0.16 per pound
The cost of purchasing peaches for $7.00 per box of peaches with a delivery charge of
$3.00
The cost of purchasing a basket of oranges for $1.30 per pound plus $5.00 for the basket