Answer:
Step-by-step explanation:
Part a)
$24 + x ≤ $75 models this situation. We solve for x by subtracting $24 from both sides, which results in x ≤ $51. This $51 is the additional amount you must spend so as to get free shipping.
Part b) Will you get free shipping if you've already spent $24 on clothing and now spend $51 for this pair of shoes? Combine these purchases into one, which raises the bill to $51 + $24, or $75. Is
the above inequality true when the total cost of the purchases is $75?
$24 + x ≥ $75 is true when we let x = $75.
$24 + $75 ≥ $75.
Yes, these purchases qualify for free shipping.
