B is the correct answer. Less than or equal to 35 t shirts orders.
$325 - $45 delivery charge for ALL orders, = $280.
$280 divided by $8 per order is 35 t shirts.
Let 
be the amount of the 30% alloy and 
the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of
kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that
Now,
Answer:
<em>3.12 m</em>
Step-by-step explanation:
13 - 9.88 = 3.12
